The Etiquettes of Dua (Supplication)

427. “”My father heard from a man who had hung himself to Kaba saying: O God send greetings upon Muhammad. He said to him: Don’t shorten that formula of blessing nor be unjust to us, rather say: O God! Send Your greetings upon Mohammad and his household.”
Abdullah Ibne Naeem relates the following Hadith: I said to Imam Sadeq (AS): I entered the House of God while I could not remember any Dua except Salawat. The Imam said:

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428. “No one has done better than what you did.”
Jaber has reported on the authority of Imam Baqer (AS):

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429. “A man being in the Fire of Hell was calling a hundred and forty Kharif, every Kharif having a hundred and forty years. Then he invoke God through Mohammad and his household saying: Have mercy on me. Here God inspired Gabriel with a revelation saying: Descend towards my servant, bring him to Me from Hell. Gabriel said: O Lord! How can I go into Fire? Gabriel said: O Lord! How can I go into Fire? God said: I ordered the Fire to become cold and safe for you. Gabriel said: O Lord! I do not know where he is. God said: He is imprisoned in ditch. Going to him and seeing that man’s feet were tied and hung by face, Gabriel said to him: How long have you been in Fire? He said: I do not know how long I have been left here? Gabriel took him to God. Then God said to him:
O my servant! How long have you been calling on Me in Fire?
He said: I do not know My Lord! God said: By My Glory! If you had not uttered these words, I would have kept you in Hell, for I have made it My duty to forgive any man who invokes Me through Muhammad and his household. It is for this reason that I have forgive you to day.”
Salman, the Persian has reported on the authority of the Holy Prophet (SAW):

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430. “God says: O My servant! Has it not happened that someone asks a big thing from you but you are not willing to fulfill it unless he brings the most believed person to persuade you to fulfill those desires for the sake of that intercessor? Let it be known to you that the most honorable and supreme creature with Me is Muhammad and his brother Ali and the Imams who are the medium of nearness to Me. Be aware that whoever has a great desire and wishes for a benefit or removal of a harm, if he calls on Me through Muhammad and his pure progeny, I will fulfill his desires far better than fulfilling the desire of one who has taken the most believed creature of God as an intercessor.”
While Salman was reporting this, some of the polytheists and hypocrites who were ridiculing him said: O Salman! Why don’t you invoke God through these people to make you the most wealthy man in Medina?
Salman said: I called on God and requested Him to give me something which is superior to and more profitable than ruling over the whole world. I invoked God through these honorable persons to give me a tongue which praises God, a heart which thanks His blessing, a body which can forbear all hardships. God too fulfilled all my desires. What I asked God is a thousand times better than ruling over the whole world.
Muhammad Ibne Ali Babvieh has reported on the authority of Imam Sadeq (AS):
431. “Zoleikha said: Praise is due to God who makes kings slave because of their sins and kings slaves as a result of their devotion.
Yusuf (AS) said: O Zoleikha! What prompted you to do so? Zoleikha said: The beauty of your face, O Yusuf!
Yusuf said: So what will you do if you see the last prophet, whose name is Muhammad (SAW) and he is more beautiful, more good tempered and more generous than I am? Zoleikha said: You are right, Yusuf said: how do you know that I am telling the truth? Zoleikha said: As soon as you mentioned his name, his love was placed in my heart. Here God inspired Yusuf that Zoleikha tells the truth and since he loves Muhammad I love her too. Then God ordered Yusuf to marry Zoleikha.
Jaber has reported on the authority of Imam Sadeq (AS):

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432. “One of angels asked God to give him the power of hearing God’s servant. God too fulfilled his desire, hence whenever a believer recites Salawat, the angel will firstly say peace be upon you and secondly he will say to the Holy Prophet (SAW): O Messenger of Allah! Such and such a person sends greetings upon you and the Holy Prophet too will say: Peace be upon him.”
Amiralmomenin (AS) has said:

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