Surah Al-An'aam, Verse 37
Translation — Sahih International
And they say, "Why has a sign not been sent down to him from his Lord?" Say, "Indeed, Allah is Able to send down a sign, but most of them do not know."
Source
Kur'an-ı Kerim, En'âm Suresi 6:37
https://kuran.diyanet.gov.tr/mushaf/kuran-meal-2/6-suresi-37-ayet