Swearing to the Truthfulness of the Qur'an and the Failure of Those Who oppose it

Ibn `Abbas said, "Ar-raj` means rain." It has also been narrated from him that he said, "It means the clouds that contain rain." He also said,

وَالسَّمَآءِ ذَاتِ الرَّجْعِ

إِنَّهُ لَقَوْلٌ فَصْلٌ (this is a decisive word..86:13) In other words, the Qur'an is truly a Decisive Word that decides between truth and falsehood, and there is no room for any doubt in it.

Sayyidna ` Ali ؓ says that he heard the Holy Prophet ﷺ as saying about the Holy Qur'an: