Sahih al-Bukhari 4264
صحيح البخاري#4264SahihNarrated 'Amir:Whenever Ibn `Umar greeted the son of Ja`far, he used to say (to him), "Assalam 'Alaika (i.e. peace be on you) O the son of two-winged person
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih al-Bukhari is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 64:298