Islam, Muslims are instructed not to give up du'a because they do not see a response immediately. Purity In Islam, in order for a person's du'a to be accepted by God, it must be for something pure and good. Good intentions In Islam it is imperative that a person making du'a have the best of intentions for whatever he or she is asking. An example would be if someone asks for an increase in wealth, they should intend with that increase in wealth to spend more on the poor and on their relatives. Attentive heart A Muslim is instructed to make du'a with an attentive heart. A Muslim should be aware of what he is saying and should believe in his or her heart that their du'a will be responded to by God. Sustenance It states in the Quran in sura Al-Baqara Verse 200: Again and moreover Muhammad is reported to have said, The Hadith above describes a man who earned his money by cheating other people. His money was impure so therefore everything he purchased with his money became impure. His clothes, drink, and food were all purchased with that money which was considered impure, so his clothes, drink and food were all considered impure. According to the above hadith, in Islam a person's du'a will not be accepted by God if he earns unlawful money. The hadith also stresses that according to Islam, anyone who eats impure foods, such as pork, will have his or her du'a rejected by God. Non-interference In Islam there is no specific time of day to which making du'a is restricted. In Islam, if something more important comes up than du'a, then that takes precedence. What is more important than du'a is defined by the Quran and Sunnah. Some examples include the call to prayer. If the adhan'' is called, in Islam one must respond to it. Another example is if a person is making du'a, and his or her parents call him or her for assistance, then responding to his or her parents takes precedence over du'a. This means a person must stop making du'a when he or she hears the adhan or the parents calling him or her, to respond. In Islam, the rights of the parents are great and are emphasized greatly in the Quran and Hadiths. Why Duas are not answered There are various reasons due to which Du'as, supplications and invocations are not accepted. Authentic or confirmed reasons Impatience God rejects supplications if the worshipper is hasty or does not have patience. Change oneself first This aspect is explained in the following verse: Praising God One reported Hadith relates as follows, If worshipper thinks Dua will not be answered Muhammad is reported to have said, Not thinking positively of God may have invocations unanswered. Muhammad said: Sinful or haraam income and food Muhammad made mention of a person who travels widely, his hair dishevelled, and covered with dust. A similar version in Hadith reported by Ahmad, Muslim, and al-Tirmidhi from Abu Hurayrah, as mentioned in sahih al-Jami #2744. Asking for something sinful Abu Hurayrah reports that Muhammad said: A dua for something that is haram cannot be made and will not be fulfilled. Muslims cannot ask for that which is forbidden in Islam. Such duas would definitely not be answered. Cutting of the ties of kinship Muhammad said: Making Dua conditional Muhammad said: In Shia Islam Praying or Du'a in Shia has an important place as Muhammad described it as a weapon of the believer. Du'a is considered a feature of Shia community in a sense. Performing Du'a