Surah An-Nisaa, Verse 101
Translation — Sahih International
And when you travel throughout the land, there is no blame upon you for shortening the prayer, [especially] if you fear that those who disbelieve may disrupt [or attack] you. Indeed, the disbelievers are ever to you a clear enemy.
Source
Kur'an-ı Kerim, Nisâ Suresi 4:101
https://kuran.diyanet.gov.tr/mushaf/kuran-meal-2/4-suresi-101-ayet