In present times, the condition of the people is that they turn to God and pray to Him when they face a problem in their lives but in dawah work, they become totally unaware of the importance of dua. Whereas dua is related to dawah work in the same way as it is related to other matters of the world. The fact is that dua is an essential part of dawah work. Without dua the task of calling people to God cannot be performed in an effective way.

Dua is not connected only to the madu, rather it is connected to the dayee himself as well. A dayee should constantly make prayer to God for him. He should constantly pray to God to make his dawah effective for the madu. He should constantly pray to God to create such conditions for him as are conducive to performing dawah work in a better way. 

The same is true of madu. A dayee is a true well-wisher for his madu. this feeling of well-wishing compels him to pray to God for him constantly. One accepts the dawah only with the permission of God. This is with God’s help that one is guided to accept the message of Truth. All these things require that a dayee should continually pray to God for the guidance of his madu. The Prophet called people to God in the day and prayed to God for their guidance in the night.

Source: Calling People to God