Sahih al-Bukhari 6627
صحيح البخاري#6627SahihNarrated Ibn `Umar:Allah's Messenger (ﷺ) sent an army detachment and made Usama bin Zaid its commander. Some people criticized (spoke badly of) Usama's leadership. So Allah's Messenger (ﷺ) got up saying, "If you people are criticizing Usama's leadership, you have already criticized the leadership of his father before. But Waaimullah (i.e., By Allah), he (i.e. Zaid) deserved the leadership, and he was one of the most beloved persons to me; and now this (his son Usama) is one of the dearest persons to me after him." (See Hadith No. 765, Vol)
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: 83:7