Surah Al-Qasas, Verse 53
Translation — Sahih International
And when it is recited to them, they say, "We have believed in it; indeed, it is the truth from our Lord. Indeed we were, [even] before it, Muslims [submitting to Allah]."
Source
Kur'an-ı Kerim, Kasas Suresi 28:53
https://kuran.diyanet.gov.tr/mushaf/kuran-meal-2/28-suresi-53-ayet