قُمْتُ لَيْلَةً أُصَلِّي عَنْ يَسَارِ النَّبِيِّ صلى الله عليه وسلم فَأَخَذَ بِيَدِي أَوْ بِعَضُدِي حَتَّى أَقَامَنِي عَنْ يَمِينِهِ، وَقَالَ بِيَدِهِ مِنْ وَرَائِي.
Ibn Abbas reported: One night I stood praying on the left of the Prophet ﷺ. He took me by the hand – or by the upper arm – and placed me on his right; and he did so with his hand from behind me.
also in Sahih al-Bukhari 117, Sahih al-Bukhari 138, Sahih al-Bukhari 183, Sahih al-Bukhari 697, Sahih al-Bukhari 698, Sahih al-Bukhari 699, Sahih al-Bukhari 726