Sunan Ibn Majah 1019
سنن ابن ماجه#1019SahihIt was narrated that ‘Abdullah said:“We would greet others during the prayer, and it was said to us: ‘During the prayer one is preoccupied.’”
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 ZaiIsnaad Hasan
In-book reference: 5:217