Bilal said to Abu Bakr, "If you have bought me for yourself then keep me (for yourself), but if you have bought me for Allah's Sake, then leave me for Allah's Work."
Sahih al-Bukhari Book 62, Hadith 100
← Previous Hadith `Umar used to say, "Abu Bakr is our chief, and he manumitted our chief," meaning Bilal.

Sahih al-Bukhari Book 62, Hadith 99 Next Hadith → Once the Prophet (ﷺ) embraced me (pressed me to his chest) and said, "O Allah, teach him wisdom (i.e. the understanding of the knowledge of Qur'an).

Sahih al-Bukhari Book 62, Hadith 101