Ibrahim bin Abu Mahdhurah, may Allah have mercy on him, narrates from his father, from his grandfather, that the Prophet Muhammad (peace and blessings be upon him) said: The Prophet Muhammad (peace and blessings be upon him) called Sayyiduna Abu Mahdhurah (may Allah be pleased with him) and taught him the method of giving the adhan, and instructed him to give the adhan in Makkah, in which "Allahu Akbar" is said twice, and the words of the iqamah are recited once.