(54) باب إِمَامَةِ الْعَبْدِ وَالْمَوْلَى
Narrated Ibn `Umar:
When the earliest emigrants came to Al-`Usba [??] a place in Quba', before the arrival of the Prophet- Salim, the slave of Abu Hudhaifa, who knew the Qur'an more than the others used to lead them in prayer.
Reference: Sahih al-Bukhari 692
In-book reference: Book 10, Hadith 87
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 1, Book 11, Hadith 661