Imam `Ali ibn al-Husain Sayyid as-Sajjidin (prayers be upon him) related from his father from his grandfather the Prophet of Allah (blessings of Allah be upon him and his family) that this supplication was taught by the Angel Jibra’il (prayers be upon him) to the Prophet (blessings of Allah be upon him and his family) during one of the battles. Imam Husain ibn Ali (as) said, “My father Ali ibn Abi Talib (AS) had bequeathed to me that I should memorise and protect this supplication and write it on his Kafan (burial shroud) and that I should teach it to my family and encourage them to read it as it contains 1,000 names of Allah and within these names is the Greatest Name of Allah (Ism-e-Azam).