Salman the Persian or Salmān al-Fārisī (Arabic: سَلْمَان ٱلْفَارِسِيّ), born Rouzbeh Khoshnudan (Persian: روزبه خشنودان), was a companion of the Islamic prophet Muhammad and the first Persian who converted to Islam. During some of his later meetings with the other Sahabah, he was referred to by the kunya Abu Abdullah ("Father of Abdullah"). He is credited with the suggestion of digging a trench around Medina, a Sasanian military technique when it was attacked by Mecca in the Battle of the Trench.