The Etiquettes of Dua (Supplication)

433. “Four persons were given special hearing power: The Holy Prophet (SAW), paradise, Hell and Houri (nymph of paradise). Whenever a servant of God, completes his prayer, he should recite Salawaat, long for paradise, take refuge to Him from Hell and wish to marry a Houri, for whoever recites Salawaat for the Holy Prophet (SAW), his Dua will go up to heavens. Whoever asks God for paradise, paradise will say: O God! Give your servant whatever he wishes. O whoever seek refuge to God from Hell, the Hell will say: O God! Give refuge to Your servant from what he has sought refuge. And whoever desires Houri, the Houri will say: O God! Grant the desire of Your servant.”
Muhammad Ibne Moslem has reported on the authority of Imam Baqer or Imam Sadeq (AS):

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434. “There is nothing more heavy in the scales of deeds than Salawaat. On the Day of Judgement, a man’s deeds are brought and put in the scales. They see they are light but the Holy Prophet (SAW) brings Salwaats and put then in the scales making them heavy.”
Hesham Ibne Saalem has reported on the authority of Imam Sadeq (AS):
435. “Dua is hidden from God (not answered) unless the supplicant recites Salawaat.”
Imam Sadeq (AS) has also said:

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436. “Whoever recites Dua without mentioning the name of the Holy Prophet (SAW), that Dua will hover above him till he mentions the Holy Prophet’s name in which case his Dua will go up to heavens.”

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437. “Whoever has a desire, should recite Salawaat first, then he should ask for his desire and bring his Dua to an end with Salawaat, for God is too generous to answer two sides of Dua but abandon the middle of it since Salawaat is not hidden to Him.”
j- Weep while you are reciting Dua
Weeping is the sign of humility and supreme position for the following reasons:
Firstly- Weeping suggests tender-heartedness and tender-heartedness suggests devotion and devotion entails fulfillment of Dua. Imam Sadeq (AS) has said:

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438. “Whenever you trembled to the skin, your eyes were replete with tears, and your heart became apprehensive, keep that state well, for you have attained your objective.”
On the contrary, dry eyes and no tears are the sign of hardheartedness which indicate:
1- Being away from God. Addressing Moses (AS) God said:

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