Sunan Ibn Majah, Hadith 929 ⓘ
It was narrated from Qabisah bin Hulb that his father said: “The Prophet led us (in prayer), and he used to depart from both sides. (i.e. from either side).”
حَدَّثَنَا عُثْمَانُ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا أَبُو الأَحْوَصِ، عَنْ سِمَاكٍ، عَنْ قَبِيصَةَ بْنِ هُلْبٍ، عَنْ أَبِيهِ، قَالَ أَمَّنَا النَّبِيُّ ـ صلى الله عليه وسلم ـ فَكَانَ يَنْصَرِفُ عَنْ جَانِبَيْهِ جَمِيعًا .
also referenced under: Book 5, Hadith 982 (In-Book) & Volume 2, Book 5, Hadith 929 (DarusSalam)