Sunan Ibn Majah 841
سنن ابن ماجه#841SahihIt was narrated that from ‘Amr bin Shu’aib, from his father, from his grandfather, that the Messenger of Allah (ﷺ) said:“Every prayer in which Fatihatil-Kitab (the Opening of the Book) is not recited, it is deficient, it is deficient.”
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
Shuaib Al ArnautSahih Lighairihi
Zubair Ali ZaiIsnaad Hasan
In-book reference: 5:39