Sunan Abi Dawud 1252
سنن أبي داود#1252SahihNarrated Abd Allah b. 'Umar:The Messenger of Allah (ﷺ) would pray two rak'ahs before and two after the noon prayer, two after the sunset prayer in his house, and two after the night prayer. He would not pray after the Friday prayer till he departed. He would then pray two rak'ahs
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniSahih
Muhammad Muhyi Al-Din Abdul HamidSahih
Shuaib Al ArnautSahih
Zubair Ali ZaiSahih Bukhari (937) Sahih Muslim (882)
In-book reference: 5:3