Sunan an-Nasa'i, Book 10, Hadith 66 (In-Book) ⓘ
It was narrated that Ibn Abbas said: "I prayed with the Messenger of Allahand I stood on his left. He took hold of me with his left hand and made me stand on his right."
أَخْبَرَنَا 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 .
also referenced under: Hadith 842 (Reference) & Volume 1, Book 10, Hadith 843 (DarusSalam)