Will a famous man who embraced Islam be rewarded for his followers' conversion to Islam due to his declaration of Islam and his call to it? Is it a condition to have the intention of dawah (proselytizing) to be rewarded, or is it sufficient for him to have initiated a good practice (sunnah hasanah)? And is the conversion of his followers considered true Islam, even though their intentions may be questionable?

Whoever does a good deed and people follow him in it will receive a reward equal to theirs, because he was the cause of it. This is based on the words of the Prophet, peace and blessings be upon him: "Whoever calls to guidance will have a reward similar to the rewards of those who follow him, without diminishing anything from their rewards," and his saying: "Whoever introduces a good practice in Islam, and it is acted upon after him, will have a reward similar to the reward of whoever acts upon it, without diminishing anything from their rewards." It is not a condition for receiving the reward that the initial doer intends for people to follow him.

The Islam of anyone who utters the two testimonies of faith willingly is affirmed. There is nothing to prevent the validity of the Islam of those who convert by following others, just as Arab tribes converted to Islam by following their leaders. Scholars have explicitly stated the validity of the faith of the 'muqallid' (one who follows without delving into proofs), who believes without examining the evidence. This is the doctrine of the Ahl al-Sunnah wal Jama'ah, in contrast to those who stipulate knowledge of rational proofs. Firm belief is sufficient for Islam.