Sunan Ibn Majah 812
سنن ابن ماجه#812SahihIt was narrated that ‘Aishah said:“The Messenger of Allah (ﷺ), Abu Bakr, ‘Umar and ‘Uthman used to start their recitation with “All praises and thanks are to Allah, the Lord of all that exists. (Al- hamdu Lillahi Rabbil-‘Alamin).’” [1:]
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
Shuaib Al ArnautSahih
Zubair Ali ZaiSahih Muslim
In-book reference: 5:10