Sunan Ibn Majah 915
سنن ابن ماجه#915SahihIt was narrated from ‘Amir bin Sa’d, from his father, that the Messenger of Allah (ﷺ) used to say the Salam to his right and to his left
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 ZaiSahih Muslim
In-book reference: 5:113