Ali ibn Husayn known as Zayn al-Abidin (the adornment of the worshippers) and Imam al-Sajjad (The Prostrating Imam), was the fourth Shia imam, after his father Husayn, his uncle Hasan, and his grandfather Ali—Muḥammad’s son-in-law. Ali ibn Husayn survived the Battle of Karbala and was taken, along with enslaved women, to the caliph in Damascus. Eventually, he was allowed to return to Medina, where he led a secluded life with a few intimate companions. Imam Sajjad's life and statements were entirely devoted to asceticism and religious teachings, mostly in the form of invocations and supplications. His famous supplications are known as Al-Sahifa al-Sajjadiyya.