Ash-Shama'il Al-Muhammadiyah
The Sitting Of Rasoolullah
باب ما جاء في جلسته صلى الله عليه وسلم
'Abdu’llah ibn Hassan reported on the authority of his grandmothers
Qaila bint Makhrama said that she saw Allah’s Messenger (Allah bless him and give him peace) in the mosque squatting on his heels. She said: "When I saw Allah’s Messenger (Allah bless him and give him peace) displaying humility in the mosque, I trembled with fright."
'Abbad ibn Tamim reported
His paternal uncle said that he saw the Prophet (Allah bless him and give him peace) lying on his back in the mosque, placing one of his legs over the other.
Abu Sa'id al-Khudri said
“When Allah’s Messenger (Allah bless him and give him peace) sat in the mosque, he pressed his legs against his stomach with his hands.”