It wasnarrated from Abu Hurairah that the Prophet (ﷺ) said:
"TheFirewill consume all of the son of Adam except the mark ofprostration.Allah has forbidden the Fire to consume the mark ofprostration.'" (FR)
English reference (FR): Vol. 5, Book 37, Hadith 4326 (FR)
Arabic reference (FR): Book 37, Hadith 4469 (FR)