It was narrated from Ibn as-Simt that he came to some land called Doomeen, eighteen miles from Homs, and prayed two rak'ahs. I [the narrator] said to him. Are you praying two rak'ahs? He said:
I saw 'Umar bin al-Khattab in Dhul-Hulaifah praying two rak'ahs and I asked him (about that). He said: I am only doing what I saw the Messenger of Allah ﷺ do.