Al-A'raf · 7:203

203. And If you O Messenger come with a sign, they reject it and turn away from it; and if you do not come to them with a sign, they ask why he did not produce one. Say to them O Messenger: 'It is not up to me to just come with a sign. Rather, I only follow what was revealed to me from Allah: the Qur’ān which I recite to you, an evidence and proof from Allah your Creator, the arranger of your lives, a guidance and mercy for the believers among His creation. As for those who do not have faith, then they are lost and wretched.'