The hadith about the manners of lying and sitting are given here.

DEATH AND SITTING ETHICS
HADITH SHERIFF RELATED TO
SLEEPING AND SEATING CODE

815. Bara Ibn Azib radiyallahu anhuma said:
When the Messenger of Allah, peace and blessings be upon him, would lie on his bed, he would lie on his right side and pray as follows:
“Allahumma eslamtu nafsî ileyke, ve veccehtü vechî ileyke, ve fawwadtu amrî ileyke, ve elce’tü zahri ileyke, in demand and guide ileyke, lâ melcee ve lâ mencê minke illâ ileyke. Âmentü bi kitâbikellezî enzelte ve nebiyyikellezî erselte:
“My God! I surrender myself to you. I turned my face to you. I bought you my job. Desiring your consent and fearing your torment, I leaned on you and took refuge in you. Against you, there is no shelter but you. I believed in the book you sent down and the prophet you sent. ”
Bukhari, Daavât 5. See also. Bukhari, Wudu’ 75; Muslim, Dhikr 56-58; Abu Dawud, Adab 98

816. Bara Ibn Azib radiyallahu anhuma said:
– The Messenger of Allah (pbuh) said to me:
He said, “When you go to bed, perform ablution like a prayer, then lie on your right side and read this prayer and make the words of this prayer your last word before going to bed.”
Bukhari, Wudu 75; Muslim, Dhikr 56

817. Aisha radiyallahu anha said:
The Messenger of Allah, peace and blessings be upon him, used to pray eleven rak’ats at night. At dawn, they would pray two rak’ahs briefly, then lie down on their right side until the muezzin came and recited the morning prayer.
Bukhari, Daavât 5; Muslim, Musafirin 121-122

818. Huzeyfe radiyallahu anh said:
When the Messenger of Allah (pbuh) wanted to sleep at night, he put his hand under his cheek and then said:
“Allahumma bismika amutu wa ahya: “O Allah! I die in your name, I resurrect in your name.” When he wakes up from sleep: “Alhamdulillahillezî ahyanâ min ba’di ma ematenâ ve ilayhin-nuşûr. “Praise be to Allah, who resurrected us after killing us. Resurrection belongs only to Him.”
Bukhari, Daavât 7, 8, 16. See also. Muslim, Zikr 59; Abu Dawud, Adab 98; Tirmidhi, Edeb 28; Ibn Majah, Prayer 16

819. Yaish Ibn Tıhfe al-Gifari radiyallahu anhuma narrated that my father told me:
At one time, I was lying face down in the mosque. I saw a man move me with his foot and said:
“This is a way of lying that causes God’s anger,” he says. And what should I see, isn’t he the Messenger of Allah sallallahu ‘alaihi wa sallam?
Abu Dawud, Adab 95. See also. Tirmidhi, Edeb 21

820. According to what is narrated from Abu Hurairah radiyallahu anh, the Messenger of Allah sallallahu ‘alayhi wa sallam said:
“If a person sits in an assembly and does not mention the name of Allah there, he has done something wrong and committed a sin against Allah. If a person goes to bed and does not remember Allah there, he will have done something wrong and committed a sin. ”
Abu Dawud, Adab 25. See also. Ahmad Ibn Hanbal, Musnad, II, 422

LAYING AND SITTING CUSTOMS

821. According to what is reported from Abdullah Ibn Yazid radiyallahu anh, he saw the Messenger of Allah (pbuh) lying on his back with one foot on the other in the mosque.
Bukhari, Salat 85, Isti’zan 44; Muslim, Libas 75. See also. Tirmidhi, Edeb 19; Nesai, Mesâcid 28

822. Jabir Ibn Samura radiyallahu anhuma said:
After performing the morning prayer, the Messenger of Allah (pbuh) would sit cross-legged until the sun rose.
Abu Dâvûd, Adab 26. For similar narrations, see. Muslim, Masâcid 286; Tirmidhi, Salat 412

823. Ibn Umar radiyallahu anhuma:
He said: “I saw the Messenger of Allah (pbuh) sitting in the courtyard of the Kaaba holding his knees with his hands,” he said, and described the way the Messenger of Allah sat by placing his thighs on his stomach, holding his arms and knees and sitting on his buttocks.
Bukhari, Isti’zan 34

824. Kayle Binti Mahrema radiyallahu anha says:
I saw the Messenger of Allah, peace and blessings be upon him, sitting on his buttocks, with his knees on his stomach, his hands under his armpits. When I saw the Messenger of Allah, peace and blessings be upon him, sitting in such a humble state, I was startled with fear.
Abu Dawud, Adab 22

825. Sharid Ibn Suwayd radiyallahu anh said:
One day, while I was sitting with my left hand thrown back and leaning on the palm of my hand, the Messenger of Allah (pbuh) stopped by me and said:
“Are you sitting like those who have incurred the wrath of Allah?” he commanded.
Abu Dawud, Adab 24

CUSTOMS OF SEATING IN MASS ASSEMBLIES

826. According to what is reported from Ibn Umar radiyallahu anhuma, the Messenger of Allah sallallahu ‘alayhi wa sallam said:
“Do not let one of you raise a person from his seat and then sit in his place. But by opening it, expand the ring. “
Ibn ‘Umar would not sit in his place when a person stood up for himself.
Bukhari, Friday 20, Isti’zan 31; Muslim, Salam 28-29. See also Tirmidhi, Adab 9

827. According to what is narrated from Abu Hurairah radiyallahu anh, the Messenger of Allah sallallahu ‘alayhi wa sallam said:
“If one of you gets up from his seat and then comes back, he has the right to sit there more than anyone else. “
Muslim, Salam 31

828. Jabir Ibn Samura radiyallahu anhuma said:
When we came to the presence of the Prophet, sallallahu ‘alaihi wa sallam, each of us would sit wherever he could find a place.
Abu Dawud, Adab 14; Tirmidhi, Isti’zan 29

829. According to what is narrated from Abu Abdullah Salman al-Farisi radiyallahu anh, the Messenger of Allah (pbuh) said:
“If a person performs ghusl on Friday, cleans as much as he can, either smears himself with his own special scent or the fragrance in his house and leaves his house, does not come between two people, then performs the obligatory prayer on him, and remains silent and listens while the imam is delivering the sermon, His sins between the next Friday are forgiven. “
Bukhari, Friday 6, 19. See also. Darimi, Salat 191; Muvatta, Fri 18

830. According to what Amr Ibn Shuayb narrated from his grandfather, Abdullah Ibn Amr Ibn As radiyallahu anh, through his father, the Messenger of Allah (pbuh) said:
He said, “It is not lawful for anyone to sit between two people unless they allow it.”
Abu Dawud, Adab 21; Tirmidhi, Adab 11
In a narration of Abu Dawud, it is as follows:
“You cannot sit between two people without their permission. “
Abu Dawud, Adab 21

831. According to what is narrated from Hudhayfa Ibni Yeman radiyallahu anh, the Messenger of Allah (pbuh) cursed a person who sat in the middle of a group of people.
Abu Dawud, Adab 14
According to the narration of Tirmidhi from Abu Miclez, a man came and sat in the middle of the circle. Upon this, Huzeyfe said:
The person sitting in the middle of the circle said, ‘He has been cursed by Allah in the language of Muhammad sallallahu ‘alaihi wa sallam or in the language of Muhammad sallallahu ‘alaihi wa sallam’.
Tirmidhi, Adab 12

832. Abu Said al-Khudri radiyallahu anh said:
The Messenger of Allah (pbuh) said:
I heard him say, “The best of assemblies is the largest one”.
Abu Dawud, Adab 12. See also. Ahmad Ibn Hanbal, Musnad, III, 18, 69

833. According to what is reported from Abu Hurairah radiyallahu anh, the Messenger of Allah (pbuh) said:
“Whoever sits in an assembly and spends time there with a lot of useless and meaningless words, before he leaves that assembly, Subhanaka Allahumma wa bihamdike ashhedu en la ilaha illa enta astaghfiruke wa etub ileyke: O Allah! I glorify you with praise and praise from all kinds of deficient attributes. I firmly state that there is no god but You. If he asks for your forgiveness and says I repent to you, his mistakes in that assembly will be forgiven. ”
Tirmidhi, Daavat 39

834. Abu Barza radiyallahu anh said:
When the Messenger of Allah (pbuh) wanted to leave the assembly, they used to pray as follows:
“Subhanaka Allahumma wa bihamdike ashhadu en la ilaha illa enta astaghfiruke wa etub ilayke”: “O Allah! I glorify you with praise and praise from all kinds of deficient attributes. I firmly state that there is no god but You. I ask your forgiveness and repent to you. ” Then a man said:
– O Messenger of Allah! Undoubtedly, you are saying something you have not said before! said. The Messenger of Allah:
He said, “These words I have spoken are expiation for the mistakes and faults committed in the assembly.”
Abu Dawud, Adab 27

835. Ibn Umar radiyallahu anhuma said:
It was very rare for the Messenger of Allah (pbuh) to leave an assembly before saying the following prayers:
“My God! Give us enough of your fear to stand in the way of sin. Grant us your obedience enough to take us to your paradise. Give me strong faith that will alleviate the calamities of the world. my god! Make use of our ears, eyes and strength as long as you keep us alive; perpetuate them until our death. Take our revenge on those who persecute us. Help us against those who are hostile to us. Do not harm us in our religion. Do not make the world our greatest thought and aim, the end of our knowledge. Do not impose upon us those who do not pity us. ”
Tirmidhi, Daavat 80

836. According to what is narrated from Abu Hurairah radiyallahu anh, the Messenger of Allah sallallahu ‘alayhi wa sallam said:
“If any group leaves the assembly where they sit without remembering Allah, it will be as if the carcass of a carcass has been removed from it. That assembly will be a regret for them. ”
Abu Dawud, Adab 25

837. According to what is narrated from Abu Hurairah radiyallahu anh, the Prophet sallallahu ‘alayhi wa sallam said:
“If a congregation does not remember Allah in the assembly where it sits and do not send blessings and greetings to their prophets, this assembly will be a disgrace for them. If Allah wills, He will punish them, if He wills, He will forgive them. ”
Tirmidhi, Daavât 8

838. According to what is narrated from Abu Hurairah radiyallahu anh, the Messenger of Allah sallallahu ‘alayhi wa sallam said:
“If a person sits in an assembly and does not mention the name of Allah there, he has done something wrong and committed a sin against Allah. If a person goes to bed and does not remember Allah there, he will have done something wrong and committed a sin. ”
Abu Dawud, Adab 25, 98

He greets the prophet of islam muhammad (pbuh)