Sunan Ibn Majah 3945
سنن ابن ماجه#3945SahihIt was narrated from Abu Bakr Siddiq that the Messenger of Allah (ﷺ) said:“Whoever offers the morning prayer, he is under the protection of Allah, so do not betray Allah by betraying those who are under His protection. Whoever kills him, Allah will seek him out until He throws him on his face into Hell.”
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 Lighairihi
Zubair Ali ZaiSahih
In-book reference: 36:20