Amatul Rahmân Omer:
(Prophet!) never shall you stand in that (mosque for prayer). Certainly, the mosque which was founded upon piety (and observance of duty) from the (very) first day is more worthy that you stand (for Prayer) therein. In this (mosque) there are men (performers of Prayers) who love to become purified; and Allâh loves those who purify themselves externally and internally.
