380.01
Ibn Umar reported:The Messenger of Allah (ﷺ) had two Mu'adhdhins, Bilal and 'Abdullah b. Umm Maktum, who (latter) was blind
Sahih MuslimHadith 380 (2 narrations)
380.02
This hadith has been narrated on the authority of 'A'isha by another chain of transmitters