Da Vat (Invitation) Towards Allah As soon as he had accepted Islam he started the work of Da’wat (invitation) towards Allah first secretly and then openly when it was so allowed by the Holy Prophet. First he went to Usman, Talha, Zubair and Sa’id (Rad.A). They accepted Islam on his preaching. Next day he went to Usman bin Muzun, Abu Ubaidah, Abdui Rahman bin Auf and some other prominent Qurayshi. They also accepted Islam at his hands. In the first instance eight prominent figures accepted Islam at the hands of Hazrat Abu Bakr (Rad.A.). Among them was Hazrat Usman, ;he third Caliph of Islam. In this way he was the first Mus im, after ihe Holy Prophet, to preach Islam and to invite people tow irds Allah in a very fruitful way. The main reason for his success was his popularity among the Makkhans because of his honesty, nobility, trustworthiness, good morals and fair dealings.