Muhammad bin Abdullah bin Numayr narrates that Ibn Ishaq said: "When Allah, the Mighty and Majestic, willed to make His religion prevail, to honour His Prophet (peace and blessings be upon him) and to fulfil His promise, the Messenger of Allah (peace and blessings be upon him) went out in the season in which a group of the Ansar met him (peace and blessings be upon him). They were, as people claim, six men, among them Jabir bin Abdullah bin Riyab."
Hadith Referenceالمعجم الكبير للطبراني / باب الجيم / 1753