مسند أحمد

It was narrated that Abu Labeed said: A man called Bairah bin Asad went out from Tahiyah, migrating [Hijrah], and he reached Madinah a few days after the Messenger of Allah (ﷺ) died ‘Umar (رضي الله عنه) saw him and realized he was a stranger, so he said to him. Who are you? Are you from Oman? He said: Yes. He took him by the hand and brought him to Abu Bakr (رضي الله عنه) and said: This man is from the land of which heard the Messenger of Allah (ﷺ) saying: `I know a land called Oman at the edge of the sea, in it is a tribe of the Arabs who, if my envoy goes to them, they will not shoot arrows or throw stones at him.”