The problem? For example, renowned narrators like Ali ibn Abi Hamza al-Bata’ini, Hasan ibn Ali ibn Faddal, and Ahmad ibn Hilal al-Karkhi were reportedly sympathetic to the Waqifi doctrine.

: The version used today is primarily the abridgment by Shaykh Tusi .

In a traditional academic sense, Rijal al-Kashshi is a seminal 10th-century Shia biographical work (or "biography of narrators") used to verify the reliability of Hadith narrators. However, in the context of recent viral "math rizz" or "Pythagorean Theorem Project" content, "Al Kashi" refers to the Persian mathematician Ghiyath al-Din al-Kashi