Sunan Ibn Majah 916
سنن ابن ماجه#916SahihIt was narrated that ‘Ammar bin Yasir said:“The Messenger of Allah (ﷺ) used to say the Salam to his right and to his left, until the whiteness of his cheek could be seen (saying): ‘As-salamu ‘alaikum wa rahmatullah, as-salamu ‘alaikum wa rahmatullah.’”
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 Lighairihi
Zubair Ali ZaiSahih
In-book reference: 5:114