Abdullah b. ‘Abbas (ra) narrates from the Prophet (saws) that permission to perform the Friday prayer was given (by Allah) before hijrah, but the people were unable to congregate and perform it. The Prophet (saws) wrote a note to Mus’ab b. Umair (who was deputed to Madinah at the time to instruct them in Islam) to pray two raka’at in congregation on Friday. The Prophet (saws) then migrated to Madinah, and after his stay at Quba on his way into Madinah, prayed his first Jumu’ah prayer at the area of the tribe of Banu Salamah (today, Masjid Qiblatain).