Shiavault - a Vault of Shia Islamic Books Uyun Akhbar Ar-Ridha Volume 2 Chapter 48: On the Proof of Ar-Ridha’’s Rightfulness Due to the Acceptance of His Prayers by God the Honorable the Exalted Against Bakkar ibn Abdullah ibn Mos’ab ibn az-Zobayr ibn Bakkar Who Had Oppressed Him 48-1 Al-Hakim Abu Ali Al-Husayn ibn Ahmad al-Bayhaqi narrated that Muhammad ibn Yahya al-Sowli quoted on the authority of Ahmad ibn Muhammad ibn Ishaq al-Khorasani that he had heard Ali ibn Muhammad al-Nowafali say, “A man from the offspring of Abi Talib had az-Zobayr swear to the truth of an issue in between the grave and the pulpit of God’s Prophet (S).
Az-Zobayr swore to that and got leprosy. I saw a lot of its signs covering his legs and knees. His father also oppressed Ali ibn Musa Ar-Ridha’ (a.s.) on some occasion. Then the Imam (a.s.) cursed him.