Urwah relates: Among those of the Ansar, and then of Banu Zurayq, who took part in the pledge of al-Aqabah was Dhakwan bin Abd Qays bin Khaldah. He had set out from Madinah to Makkah as an emigrant for the sake of Allah, and he also took part in Badr.
Hadith Referenceالمعجم الكبير للطبراني / باب الذال / 4204