The Prophet declared that the best spot for prostration was the earth or a thing that grows from the earth. Kanz-ul-Ummal Part 4. p. 113 “The Prophet said to his wife Umme Salma, “Please fetch the ‘Khamrah’ (Sajdaghah) from the mosque.” The word Khumrah means a small piece of chatai made from palm leaf on which only the head could be rested when prostrating. lbn-e-Aseer in his Jam’a-ul-Usool has written, “Khumrah is the Sijdagah on which the Shi’as of our time perform their prostration on.” “I maintain that by this tradition it is ‘sunnat’ to keep a ‘sajdagah’.
Those who forbid it and call it the way of the ‘Rafzees’ are wrong. To practice this ‘sunnat’, I often perform my prostration on a fan made from palm leaf and do not care about the criticism of the ignorant.
We are concerned only with the ‘sunnat’ of the Prophet, no matter whether they call it the way of the ‘Rafzees’ or ‘Kharijees’. Let them rave about it.” Sunni ‘Alim Maulana Vahidul Zamankhan Anwar-ul-Laghat, Chap. 7, p. 118