Sunan an Nasai
1440
Sahih+2

It was narrated that 'Umar said:"The prayer for jumu'ah is two rak'ahs, and for Al-Fitr is two rak'ahs, and for An-Nahr is two rak'ahs, and for traveling is two rak'ahs, complete and not shortened, on the tongue of the Prophet (ﷺ)

SahihAbu Ghuddah
SahihAl-Albani