[1] Kumayl ibn Ziyād an-Nakha‘ī was the holder of the secrets of the Imāmate and one of the chief companions of Amīr al-mu’minīn. He held a great position in knowledge and attainment and a chief place in abstinence and Godliness. He was Amīr al-mu’minīn’s Governor of Hīt for sometime. He was killed by al-Ḥajjāj ibn Yūsuf ath-Thaqafī in the year 83 A.H. at the age of ninety years and was buried outside Kūfah.