Benefits of Duaa

Numan bin Basheer 

 narrates from Rasool-Allah , "Duaa is ibadat." Then He  read this ayat . (Tirmizi, Abu Dawod, and Ibn-e-Majah)

Abu Hurairah  narrates from Rasool-Allah , "In the court of Allah, there is no greater thing than duaa" (Ibn-e-Majah)

Abdullah bin Umar  narrates from Rasool-Allah  ," Among whatever has been descended and whatever has not been descended Duaa is beneficial of all. Oh people of Allah! Assume Duaa a must for yourselves. (Tirmizi)

Abdullah bin Umar  from Rasool-Allah , "For whoever the door of duaa opened, for him the doors of mercy are opened. Whatever duaa is asked from Allah the best duaa is for well-being and safety among them." (Tirmizi)

Abu Hurairah  narrates from Rasool-Allah , "Allah is extremely displeased with the person who doesn't do duaa to Allah". (Tirmizi)

Salman  narrates from Rasool-Allah , "Your Rab is modest and kind. A person raise his hands in HIS court and HE leave them empty, Allah shies from it." (Tirmizi and Abu Dawood)

Jabir  narrates from Rasool-Allah , "Whoever does duaa to Allah, Allah fulfills his seeking or in exchange averts misfortune until the duaa is not related to sin or breaking some relation." (Tirmizi)

Abu Hurairah  narrates from Rasool-Allah , "Do duaa to Allah with this confidence that HE will accept it and know this well that Allah doesn't accept the duaa done with a negligent and careless heart. (Tirmizi)

Salman Farsi  narrates from Rasool-Allah , "Duaa turns away destiny and good deeds lengthen age. (Tirmizi)

Umar  narrates that, "Whenever Rasool-Allah  raised his hands for duaa He  did not put down them down until HE  took both hands over his face." (Tirmizi)

Aisha (Radi Allahu Anha) narrates that, "Rasool-Allah  liked duaas that were inclusive and he left the rest." (Abu Dawood)

Abdullah bin Umar  narrates from Rasool-Allah , "Duaa for a person not present is accepted quickly by Allah." (Tirmizi and Abu Dawood)

Abu Hurairah  narrates from Rasool-Allah , "Three duaas are such in which there is no doubt of their acceptance: 1) Father's duaa 2) Traveler's duaa 3) Duaa of the oppressed". (Timizi, Ibne Majah)

Abu Hurairah  narrates from Rasool-Allah , "Three types of people's duaas are not rejected: 1) At the time of iftar the person who has fasted 2) Adil ruler's duaa 3) The duaa of the oppressed. Allah raises the duaa of the oppressed on the clouds and the doors of heaven are opened for it and Allah says, "Oath of MY Majesty and Honour! I will help and aid you. Even though if the help is after few days." (Tirmizi)

Abu Hurairah  narrates from Rasool-Allah , "When anyone of you does duaa then don't say "Oh Allah! Forgive me if you want", "Have mercy on me if you want", "Give me subsistence if you wish" rather believe completely that HE will do whatever HE wishes. Nobody can force HIM." (Bukhari)

Abu Hurairah  narrates from Rasool-Allah , "Allah excepts the duaa of a person till the duaa is not related to sin or breaking of some relation and until he does not haste in that duaa. The people (May Allah be happy with them) asked, "Oh Rasool-Allah!  What is meant by haste?" He  replied, "That the person say "I did duaa again and again but my duaa wasn't accepted and afterwards he becomes hopeless and leaves the duaa. This is called haste." (Muslim)

Jabir  narrates from Rasool-Allah , "Don't do Bad-duaa [against] yourself, your wealth, or for your children. May it be the moment of acceptance in the court of Allah and your Bad-duaa be accepted. (Muslim)

Boraidah  narrates that Rasool-Allah  heard a man performing duaa like so *1, so He  said, "He [the man] has performed duaa with the Ism-e-Azam and when Allah is asked through the Ism-e-Azam, Allah grants and when duaa is performed with it HE accepts it." (Tirmizi and Abu Dawood)

Asma binte Yazeed (Radi Allahu Anha) narrates from Rasool-Allah , "Ism-e-Azam is in these two ayahs  and in the beginning of Ale-Imran . " (Tirmizi and Abu Dawood)

Abu Hurairah  narrates from Rasool-Allah , "Saying  is dearer to me than this world and all that is in it." (Mislim)

Abu Hurairah  narrates from Rasool-Allah , "Whoever said  hundred times in one day his sins are erased even if they are equal to the foam of the sea." (Muslim and Bukhari)

Abu Hurairah  narrates from Rasool-Allah , "Every Prophet had a special duaa which is accepted in the court of Allah. All Prophets were in quick in their duaas. On the day of Judgment, for the intercession of my Ummah, I have saved my duaa. My duaa will reach to every person in my ummah, who did not make any partners with Allah. (Muslim)

*1