The Prophet explained, prayers were granted in three forms, namely given what we asked for, avoided from the ugliness that was equivalent to the good we asked for, and kept as a provision for reward in the hereafter. The feeling that our prayers are not granted, when we pray a lot is a form. This causes prayer not to be granted.

From Abu Hurairah, he said, "The Messenger of Allah said, 'Will be answered by the prayer of those who pray among you, It is also important to keep ourselves from the cause of prayer not being answered. First, eat unclean property.