Sunan an-Nasa'i 3016
سنن النسائي#3016SahihIt was narrated that Abdur-Rahman bin Yamur said:"I saw the Messenger of Allah when people came to him and asked him about Hajj. The Messenger of Allah said: 'Hajj is Arafat. Whoever catches up with the night of Arafat before dawn comes on the night of Jam (Al-Muzdalifah), his Hajj is complete
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 ZaiSahih
In-book reference: 24:399