وَإِن يُكَذِّبُوكَ فَقَدْ كُذِّبَتْ رُسُلٌ مِّن قَبْلِكَ ۚ وَإِلَى ٱللَّهِ تُرْجَعُ ٱلْأُمُورُ
Wa iny yukazzibooka faqad kuzzibat Rusulum min qablik; wa ilal laahi turja'ul umoor
If they call you a liar [Prophet], many messengers before you were also called liars: it is to God that all things will be returned.
And if they call you a liar, messengers before you were called liars too. To God all matters return.