Pray	Time

Tafseer Ibn Kathir of AZ ZUKHRUF [28]

وَجَعَلَهَا كَلِمَةً بَاقِيَةً فِي عَقِبِهِ لَعَلَّهُمْ يَرْجِعُونَ

And he made it a word remaining among his descendants that they might return [to it].