Fussilat 41:10

وَجَعَلَ فِيهَا رَوَٰسِىَ مِن فَوْقِهَا وَبَـٰرَكَ فِيهَا وَقَدَّرَ فِيهَآ أَقْوَٰتَهَا فِىٓ أَرْبَعَةِ أَيَّامٍ سَوَآءً لِّلسَّآئِلِينَ

Wajaʿala fīhā rawāsiya min fawqihā wabāraka fīhā waqaddara fīhā aqwātahā fī arbaʿati ayyāmin sawāan lilssāilīna

And He placed on it [i.e., the earth] firmly set mountains over its surface, and He blessed it and determined therein its [creatures'] sustenance in four days without distinction¹ - for [the information of] those who ask.