The Messenger of Allah, may Allah bless him and grant him peace, sent out ten men on a scouting expedition and put 'Asim ibn Thabit al-Ansari in command of them. They proceeded until they reached Had'a, which is between 'Usfan and Makka.
Their presence was reported to a branch of Hudhayl called the Banu Lihyan. About a hundred men, who were all archers, set out after them. They followed their tracks. When 'Asim and his companions perceived them, they took cover. The people surrounded them and said, 'Come down and give yourselves up! You have protection and assurance that we will not kill any of you!'
Asim ibn Thabit said, 'O people! As for me, I will not come down into the protection of an unbeliever! O Allah, inform Your Prophet about us!' They shot at them with arrows and killed 'Asim. A group of three came down, accepting the offer of protection and security. They included Khubayb al-Ansari, Zayd ibn Dathina, and another man.
The Prophet, may Allah bless him and grant him peace, informed his Companions about them on the day they fell. When they were informed that Asim ibn Thabit had been killed, some of the unbelievers of Quraysh were sent to bring part of him that could be recognised. He had killed one of their great men on the Day of Badr. Allah sent over 'Asim a swarm of bees like a cloud and it protected him from their messengers and they could not cut off any part of him."