Sahih Muslim , Book 4, Hadith 1527 (USC-MSA) ⓘ
Suddi reported: I asked Anas how I should turn-to the right or to the left-when I say my prayers. He said: I have very often seen the Messenger of Allah turning to the right.
وَحَدَّثَنَا قُتَيْبَةُ بْنُ سَعِيدٍ، حَدَّثَنَا أَبُو عَوَانَةَ، عَنِ السُّدِّيِّ، قَالَ سَأَلْتُ أَنَسًا كَيْفَ أَنْصَرِفُ إِذَا صَلَّيْتُ عَنْ يَمِينِي أَوْ عَنْ يَسَارِي قَالَ أَمَّا أَنَا فَأَكْثَرُ مَا رَأَيْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم يَنْصَرِفُ عَنْ يَمِينِهِ .
also referenced under: Book 6, Hadith 71 (In-Book) & Hadith 708 (Reference)