Reference: Fataawa Noor ‘alad-Darb – Question No.6403, Pages 234-235, Volume 12
Question: How should the Muslim engage in inviting [da’wah] to Islaam? And what is the best way to undertake da’wah [activities]?
Response: The Muslim invites to Islaam by travelling around and talking to the people and preaching to them. As for [engaging in] general da’wah [activities], then this is done in the masaajid, schools and places of gathering.
And the best approach to da’wah is to begin with the Book of Allaah and then the example of His Messenger (sal-Allaahu ‘alayhi wa sallam), as he (sal-Allaahu ‘alayhi wa sallam) said: