Sahih al-Bukhari 4469
صحيح البخاري#4469SahihNarrated `Abdullah bin `Umar:Allah's Messenger (ﷺ) sent troops and appointed Usama bin Zaid as their commander. The people criticized his leadership. Allah's Messenger (ﷺ) got up and said, "If you (people) are criticizing his (i.e. Usama's) leadership you used to criticize the leadership of his father before. By Allah, he (i.e. Zaid) deserved the leadership indeed, and he used to be one of the most beloved persons to me, and now this (i.e. his son, Usama) is one of the most beloved persons to me after him
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: 64:484