Surat Al A`raf: (202-203)

{وَإِخْوَانُهُمْ يَمُدُّونَهُمْ فِي الْغَيِّ ثُمَّ لاَ يُقْصِرُونَ} [الأعراف: 202]

202- The brothers of devils from polytheists help devils in deviating from the truth and committing of sins and facilitate their missions, so they lead people astray. Thus, they help devils to tempt and seduce people, and they do not stop until they lead them all astray.

{وَإِذَا لَمْ تَأْتِهِم بِآيَةٍ قَالُواْ لَوْلاَ اجْتَبَيْتَهَا قُلْ إِنَّمَا أَتَّبِعُ مَا يِوحَى إِلَيَّ مِن رَّبِّي هَـذَا بَصَآئِرُ مِن رَّبِّكُمْ وَهُدًى وَرَحْمَةٌ لِّقَوْمٍ يُؤْمِنُونَ} [الأعراف: 203]

203- When polytheists ask you to bring them a miracle and you do not bring it to them, they would say in mockery: Why do not you bring it yourself?

O Prophet, reply to them: I do not bring anything myself and I do not do anything but when Allah reveals to me. This Glorious Qur'an is full of clear signs and strong proofs that show up until man sees and becomes guided by them, as it is a flooding mercy for those who believe in and take benefit from.