Sayyiduna Ka'b bin Malik (may Allah be pleased with him) said: We set out on the Hajj journey in which the Messenger of Allah (peace and blessings be upon him) took the pledge from us at al-Aqabah, and the naqib (representative) of Banu Zurayq was Rafi' bin Malik bin al-Ajlan.
Hadith Referenceالمعجم الكبير للطبراني / باب الراء / 4438