Sunan an-Nasa'i 638
سنن النسائي#638SahihIt was narrated from Salim, from his father, that the Prophet (S.A.W) said:"Bilal calls the Adhan during the night, so eat and drink until you hear Ibn Umm Maktoom calling the Adhan
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 - Agreed Upon
In-book reference: 7:13