"And who is better in speech than him who prayeth unto his Lord and doth right, and saith: Lord, I am of those who surrender unto Him". And saith: Call unto the way of thy Lord with wisdom and fair exhortation, and reason with them in the better way." And He saith: "And there may spring from you a nation who invite to goodness, and forbid indecency. Such are they who are successful".

These plain revelations limit the way of holding the mission and the qualities of the Da'ee in seven points:

1. Preaching Islam should be to and for Allah.
2. The preacher should do good work.
3. He or she must declare his Faith in Islam and say: "Lo I am of those who surrender unto Him.
4. Summoning unto the path of Allah should be made via the rational proof, namely through "wisdom".
5. Preaching Islam should be stimulated by "beautiful reminding" and by fair exhortation.
6. The Da'ee should make people link their ideas with real life as they live it. This is no doubt the best and the most elevated type of discussion because the debaters grasp what is going on around them through the rational proof "And reason with them in the better way."
7. The message (Da'wa) should be carried by the group so as to achieve success, because the Qur'an denotes that the success of the Da'wa will be realized when a group holds and calls for Islam. "Such are those who are successful."

The Prophet of Allah says: "You are fully aware of your affairs unless two inebriates manifest themselves in you: The inebriety of ignorance and the inebriety of the love of worldly life." You will order people to enjoin goodness, forbid the abominable, and strive for Allah's sake. But when the love of this world gets the better of you, you will not order people to do good and forbid the detestable, nor will you strive for Allah's sake. Those who bear the Book and the Sunnah at that time are like the early predecessors of Emigrants and the Helpers.

Ali, may Allah honor him, said:

"The World is never void of one who poses in honor of Allah's evidence", whether he is well known or obscure, lest Allah's proofs and indisputable evidences fall into disuse. How many are they? And where are they? Those are, O Allah, by your side, the least in number but the greatest in value. Through them Allah preserves His proofs and indisputable evidences which they unto their equals pass and in their hearts implant. Knowledge takes them into the reality of insight, so they pursue the spirit of absolute certainty, find easy what the rich befall, get used to what the ignorant find wild, and take life along with bodies whose souls cling to Allah. Those are the inheritors of the Lord in his land and the ones who summon unto his religion, Oh, Oh, How much one craves to see them!