This document discusses Imam Ahmad Raza Khan's views on coral and its status for tayammum according to Islamic law. It summarizes his analysis that while coral appears plant-like in its growth structure, geologists have confirmed it is a stone formation, so tayammum can be performed using solid coral as it is considered part of the earth. The document also outlines Imam Ahmad Raza Khan's extensive research into permissible and prohibited materials for tayammum under the Hanafi school, with over 100 types added by him.