Sunan Ibn Majah 877
سنن ابن ماجه#877SahihIt was narrated from Abu Sa’eed Al-Khudri that he heard the Messenger of Allah (ﷺ) say:“When the Imam says: ‘Sami’ Allahu liman hamidah (Allah hears those who praise Him),’ say: ‘Allahumma, Rabbana wa lakal-hamd (O Allah! O our Lord! To You is the praise).’”
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniHasan Sahih
Muhammad Fouad Abd al-BaqiHasan Sahih
Zubair Ali ZaiIsnaad Hasan
In-book reference: 5:75