High Quality Content by WIKIPEDIA articles! Said Ibn Al-Musayyib lived in Medina was among the foremost authorities in hadith, jurisprudence and Quranic interpretation (tafseer) among the taba'een (generation succeeding the Sahaba).He was born in 637, during the caliphate of Umar ibn al-Khattab and had the opportunity to meet most of the sahaba including, ?Umar, Uthman and Ali ibn Abi Talib. Said ibn al-Musayyib was well-known for his piety, righteousness and profound devotion to Allah. Everyone accepted him, during his lifetime, as the greatest figure in the field of hadith. He began, as did Hasan al-Basri in Basra, to give opinions and deliver verdicts on legal matters when he was around twenty years of age. The Companions admired him greatly. On one occasion, Abdullah ibn Umar remarked, "If [Muhammad] had seen that young man, he would have been very pleased with him."