Rasulullah Sallallahu Alaihi Wa Sallam said: “Even a person who was in Sujud from birth until death, will still be regretful on Qiyamah” [Saheeh Targheeb v.3 p.424]
“Among the nations before you a (believing) man would be put in a ditch that was dug for him, and a saw would be put over his head and he would be cut into two pieces; yet that (torture) would not make him give up his Deen (religion). His body would be combed with iron […]