Surah Saba, Verse 18

وَجَعَلۡنَا بَيۡنَهُمۡ وَبَيۡنَ ٱلۡقُرَى ٱلَّتِي بَٰرَكۡنَا فِيهَا قُرٗى ظَٰهِرَةٗ وَقَدَّرۡنَا فِيهَا ٱلسَّيۡرَۖ سِيرُواْ فِيهَا لَيَالِيَ وَأَيَّامًا ءَامِنِينَ١٨

wajaʿalnā baynahum wabayna l-qurā allatī bāraknā fīhā quran ẓāhiratan waqaddarnā fīhā l-sayra sīrū fīhā layāliya wa-ayyāman āminīna

And We placed between them and the cities which We had blessed [many] visible cities. And We determined between them the [distances of] journey, [saying], "Travel between them by night or by day in safety."