One night an orphan and I offered the prayers behind the Prophet (ﷺ) in my house and my mother (Um Sulaim) was standing behind us (by herself forming a row).
Sahih al-Bukhari Book 10, Hadith 121
← Previous Hadith I prayed with the Prophet (ﷺ) one night and stood on his left side. Allah's Messenger (ﷺ) caught hold of my head from behind and drew me to his right and then offered the prayer and slept. Later the Mu'adh-dhin came and the Prophet (ﷺ) stood up for prayer without performing ablution.

Sahih al-Bukhari Book 10, Hadith 120 Next Hadith → One night I stood to the left of the Prophet (ﷺ) in the prayer but he caught hold of me by the hand or by the shoulder (arm) till he made me stand on his right and beckoned with his hand (for me) to go from behind (him). (Al-Kashmaihani , Fath-ul-Bari).

Sahih al-Bukhari Book 10, Hadith 122