The Expedition of Abdullah ibn Unais, also known as the Assassination of Khaled bin Sufyan was the first attack against the Banu Lahyan, which took place in the month of Muharram in the year A.H. 3. It was reported that Khaled bin Sufyan Al-Hathali (also known as Hudayr, the chief of the Banu Lahyan tribe), considered an attack on Madinah and that he was inciting the people on Nakhla or Uranah to fight Muslims. So Muhammad sent Abdullah ibn Unais to assassinate him. After cutting off Khaled bin Sufyan's head at night,[3] Unais brought it back to Muhammad.[1][2][4][5]
^ abcMubarakpuri, The sealed nectar: biography of the Noble Prophet, p. 349.