Khabbab ibn al-Aratt was a blacksmith in Makkah and among the earliest Muslims. For his faith he suffered severe persecution.
❝ HadithKhabbab said: the Messenger of Allah ﷺ was resting on his cloak in the shade of the Ka'bah. We — who were suffering terribly at the hands of the idolaters — said: will you not ask for help for us? Will you not pray for us? He said: among those before you, a man would be seized, a pit dug for him in the ground and he placed in it; then a saw would be put on his head and he would be split in two, and iron combs would tear his flesh from his bones — yet that did not turn him from his religion. By Allah, Allah will complete this matter until a rider travels from San'a to Hadramawt fearing none but Allah, and the wolf for his sheep. But you are hasty.Sahih al-Bukhari 3612 · Sahih
Within a few years that promise came true — the Arabian Peninsula knew a security that Khabbab saw with his own eyes.