A:
There is nothing wrong with offering Salah on a personal rug or on the carpets found in Masjids. The Prophet (peace be upon him) used to offer Salah on mats and on the ground. He (peace be upon him) did not confine himself to anything in particular but to whatever was available to him.The statement of Shaykh-ul-Islam refers to a specific case regarding an act that is adopted by some innovative persons who believe that offering Salah on a special rug is better than any other Salah.May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.