 Impressed by Muhammad's treatment of his sister, Adi met Muhammad and converted to Islam, along with most of his kinsmen.In 630–31, a delegation of fifteen Tayyid chiefs led by Zayd al-Khayl, who belonged to the Banu Nabhan clan of the Al al-Ghawth, converted to Islam and pledged allegiance to Muhammad.The latter was uniquely impressed by Zayd, who died a year later.