It was narrated that Qatadah said: I heard Muas- bin Salamah-say: 'I said to Ibn 'Abbas: How should I pray in Makkah if I do not pray in congregation? He said: Two rak'ahs, the sunnah of Abu Al-Qasim.'
Musa bin Salamah narrated that he asked Ibn 'Abbas: I missed the prayer in congregation when I was in Al-Batha; how do you think I should pray? He said: Two rak'ahs, the sunnah of the Messenger of Allah (ﷺ).