688.01
Musa b. Salama Hudhali said:I asked Ibn 'Abbas: How should I say prayer when I am in Mecca, and when I do not pray along with the Imam? He said: Two rak'ahs (of prayer) is the Sunnah of Abu'l-Qasim (ﷺ)
Sahih MuslimHadith 688 (2 narrations)
688.02
A hadith like this has been narrated by Abu Qatada with the same chain of transmitters