Allah does not respond to the Requests for Evil like He does with the Requests for Good

Allah tells us about His Forbearance and Benevolence with His servants. He does not respond to them when they pray with evil intentions against themselves, their wealth or their children during times of grief or anger. He knows that they do not truly intend evil for themselves so He doesn't respond to them. This is in reality kindness and mercy. On the other hand, He responds to them when they pray for themselves, wealth and money, with good, blessing and growth. Allah has said,

وَلَوْ يُعَجِّلُ اللَّهُ لِلنَّاسِ الشَّرَّ اسْتِعْجَالَهُم بِالْخَيْرِ لَقُضِىَ إِلَيْهِمْ أَجَلُهُمْ

Commentary

The first of the seven verses cited above relates to people who deny 'Akhirah (Hereafter, life to come). For this reason, when they are warned against the punishment of 'Akhirah, they mockingly say, ` if you are telling the truth, bring this punishment now' or say something like, ` why would this punishment not come soon enough?' This was like what Nadr ibn Harith had said, ` O Allah, if this thing is true, let stones rain down upon us from the heavens, or send some other severe punishment.'