﴿ قُلْ إِنِّى عَلَىٰ بَيِّنَةٍۢ مِّن رَّبِّى وَكَذَّبْتُم بِهِۦ ۚ مَا عِندِى مَا تَسْتَعْجِلُونَ بِهِۦٓ ۚ إِنِ ٱلْحُكْمُ إِلَّا لِلَّهِ ۖ يَقُصُّ ٱلْحَقَّ ۖ وَهُوَ خَيْرُ ٱلْفَٰصِلِينَ ﴾

“Say: "Behold, I take my stand on a clear evidence from my Sustainer-and [so] it is to Him that you are giving the lie! Not in my power is that which [in your ignorance] you so hastily demand: judgment rests with none but God. He shall declare the truth, since it is He who is the best judge between truth and falsehood."”

(Say: I am (relying) on clear proof from my Lord�) [6:57]. Said al-Kalbi: �This verse was revealed about al-Nadr ibn al-Harith and the chiefs of Quraysh. They used to say mockingly to the Prophet: �O Muhammad bring on us the chastisement you promised us�, and so this verse was revealed�.