Urwah narrates: "Among the Ansar who were present at al-Aqabah to pledge allegiance to the Messenger of Allah (peace and blessings be upon him), then from Banu al-Najjar, was Sahl bin Atik (may Allah be pleased with him)."
Hadith Referenceالمعجم الكبير للطبراني / باب السين / 5628