Sunan Ibn Majah 718
سنن ابن ماجه#718SahihIt was narrated that Abu Hurairah said:"The Messenger of Allah said: 'When the Mu'adh-dhin calls the Adhan, say as he says
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniSahih
Muhammad Fouad Abd al-BaqiSahih
Zubair Ali ZaiHasan
In-book reference: 3:13