At each pilgrimage season he visits the tribes camped around Makkah, asking for their support. None agrees, but individuals such as Suwaid bin Samit, Abu Dharr al-Ghifari and at-Tufail bin ‘Amr ad-Dawsi accept Islam.
As the book dates it: Dhul-Qa’dah, 10th year of Prophethood (July 619), and every season from the 4th year