Jamal ad-Din al-?asan bin Yusuf bin ?Ali bin al-Mu?ahhar al-?illi (Arabic: ???? ????? ????? ?? ???? ??????), also known as al-Allamah al-?illi (Arabic: ??????? ??????, “the sage from ?illa”), born December 15, 1250 CE (19 Ramadan 648 AH), died December 18, 1325, was a Twelver Shia theologian and mujtahid.
Known as a Marja' (Grand Ayatollah), he was one of the well known Shia scholars of his time.
His full name is Jamal ad-Din Abu Man?ur al-?asan bin Yusuf ibn al-Mu?ahhar al-?illi.
We know of at least one hundred books written by him, some of which are still in the form of manuscripts.
Muhammad bin Al-Hassan al Hurr Al- Amili in his work Amal al Amil, p.
40, enumerated no less than 67 works of this learned author.