Thescience of Hadith as a distinct discipline began in the second century with a written compilation of the first collection of prophetic sayings under the Umayyad caliph, 'Umar ibn 'Abd al-'Aziz. It also became a fully established discipline in the third/ninth century when the authoritative collections were assembled.

Ideals and realities of Islam On page 155 Saturday, January 5, 2013 @ 4:45pm