Dalil
العربية

Quran An-Naml 27:28

ٱذۡهَب بِّكِتَٰبِي هَٰذَا فَأَلۡقِهۡ إِلَيۡهِمۡ ثُمَّ تَوَلَّ عَنۡهُمۡ فَٱنظُرۡ مَاذَا يَرۡجِعُونَ

Translation

Take this letter of mine and deliver it to them. Then leave them and see what [answer] they will return."