Say, "I am not something new among the messengers,1 nor do I know what will be done with me or with you. I only follow that which is revealed to me, and I am not but a clear warner."
Translation: Saheeh International (English)
1 i.e., I am neither the first messenger to be sent, nor do I bring something different from the other messengers.
O Messenger! Say to these idolaters who reject your prophethood: “I am not the first Messenger Allah has sent, as many messengers came before me. I do not know what Allah will do with me nor what He will do with you in this life. I only follow what Allah reveals to me, so I do not say or do except according to what He reveals. And I am only a warner who clearly warns of His punishment”.