Ibn Ishaq (the Prophet’s earliest biographer) said that when the Prophet Muhammad (upon whom be peace) came to the Companions and reminded them of the dawah work, he said: ‘God has sent me to the entire world as a blessing, so you should carry out this responsibility on my behalf. God will show His mercy to you.’
There could be no greater honour under the sun than to be engaged in a mission which is directly God’s own mission. It is like working on behalf of God Almighty. It is indeed such a great honour that a greater honour than this one seems impossible.
Dawah, which in the Quran is called ‘warning and giving glad tidings’, is directly the mission of God. So that men might have no argument with God, this task was passed on to the people themselves. Moreover, the testing of humankind, if it is to be deemed both effective and valid, should not be done by means of some miracle, but should rather be performed by human agency. That is why God wants this divine work to be performed only by human beings.
This exigency has opened up the opportunity for man to perform this great divine task. Those who come forward to carry out this divine mission of dawah will receive special succour in this life and will be held deserving of great honour in the life hereafter.
When a believer says his prayers, he understands that he is declaring his humility before God. On the other hand, when he performs dawah, he feels as if he is actually performing a task of none other than God Himself. There could not be a more thrilling experience for a believer than to feel that he is engaged in God’s own work, that he is implementing his Lord’s plan.
Source: Dawah Made Simple