Sunan an-Nasa'i 3039
سنن النسائي#3039SahihIt was narrated that Urwah bin Mudarris said:"I saw the Messenger of Allah stading in Al-Muzdalifah and he said: 'Whoever offers this prayer whith us here then stands with us and stood before that in Arafat by nightor by day, 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: 24:422