Sunan an-Nasa'i 1566
سنن النسائي#1566SahihIt was narrated that 'Umar bin Al-Khattab said:"The prayer of Al-Adha is two rak'ahs, the prayer of Al-Fitr is two rak'ahs, the prayer of the traveler is two rak'ahs and the jumu'ah prayer is two rak'ahs, complete and not shortened, upon the tongue of the Prophet (ﷺ)
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Abu GhuddahSahih
Al-AlbaniSahih
Zubair Ali ZaiHasan
In-book reference: 19:11