Sahih Bukhari | Volume 5 | Hadith Number 745
Narrated by Abdullah bin 'Umar
Allah's Apostle sent troops appointed Usama bin Zaid as their commander. The people criticized his leadership. Allah's Apostle 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."