Dr. Mustafa Khattab, the Clear Quran - Surah An-Nisa, ayah 101

Translation of Surah An-Nisa, ayah 101 (4:101)

وَإِذَا ضَرَبۡتُمۡ فِي ٱلۡأَرۡضِ فَلَيۡسَ عَلَيۡكُمۡ جُنَاحٌ أَن تَقۡصُرُواْ مِنَ ٱلصَّلَوٰةِ إِنۡ خِفۡتُمۡ أَن يَفۡتِنَكُمُ ٱلَّذِينَ كَفَرُوٓاْۚ إِنَّ ٱلۡكَٰفِرِينَ كَانُواْ لَكُمۡ عَدُوّٗا مُّبِينٗا ١٠١
When you travel through the land, it is permissible for you to shorten the prayer1—˹especially˺ if you fear an attack by the disbelievers. Indeed, the disbelievers are your sworn enemies.

Foot notes

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Generally, it is permissible for Muslims who are travelling a distance of 85 km or more to shorten their prayers. A four-unit prayer is reduced to two.