Sunan an-Nasai 15580
In-book no 844أَخْبَرَنَا سُوَيْدُ بْنُ نَصْرٍ، قَالَ حَدَّثَنَا عَبْدُ اللَّهِ، عَنْ عَبْدِ الْمَلِكِ بْنِ أَبِي سُلَيْمَانَ، عَنْ عَطَاءٍ، عَنِ ابْنِ عَبَّاسٍ، قَالَ صَلَّيْتُ مَعَ رَسُولِ اللَّهِ صلى الله عليه وسلم فَقُمْتُ عَنْ يَسَارِهِ فَأَخَذَنِي بِيَدِهِ الْيُسْرَى فَأَقَامَنِي عَنْ يَمِينِهِ .
It was narrated that Ibn Abbas said: "I prayed with the Messenger of Allah (ﷺ)and I stood on his left. He took hold of me with his left hand and made me stand on his right."