Surah An-Naml Verse 28

اذْهَبْ بِكِتَابِي هَٰذَا فَأَلْقِهْ إِلَيْهِمْ ثُمَّ تَوَلَّ عَنْهُمْ فَانْظُرْ مَاذَا يَرْجِعُونَ

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