Ibn ‘Umar reported God’s Messenger as saying, “If anyone calls the adhan for twelve years, paradise is guaranteed to him; sixty blessings will be recorded for him for every day’s calling of the adhan and thirty blessings for every iqama.”
Ibn ‘Umar reported God’s Messenger as saying, “Bilal summons to prayer when it is still night, so eat and drink till Ibn Umm Maktum makes the summons.” He added that Ibn Umm Maktum was a blind man who did not make the summons till someone said to him, “The morning has come, the morning has come.”