He obtained his Islamic Education from the following scholars: In 1917, Muhammed traveled to Najaf with his brother Muhammad Sanglaji, where he spent four years.

The Oxford Handbook of Islamic Theology states: "Modernist tendencies were not limited to Sunni scholars: in Iran, Ayatollah Muhammad Hasan (Riza Quill) Shariat Sangalaji (1890 or 1892-1944) called for Ijtihad instead of Taqlid.

What brought him into fierce conflict with his conservative colleagues was his assessment that also some beliefs traditionally regarded as belonging to the core of Imami Shi'ism are superstitious and must do.

For instance, he rated the idea that the Twelfth Imam will return before resurrection to establish justice on earth as an illegitimate addition to Islam (Richard 1988: 166).

He also rejected the popular idea that al-Husayn's suffering and death were expiatory self-sacrifices, denouncing it as un-Islamic (Shariat Sangalaji, Tawhid, 63f., 140; Richard 1988:167; for Shi' I modernism in Iran and elsewhere, cf.