Qur'an 41:10

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

“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 distinction - for [the information of] those who ask.”

Fussilat 41:10 · Saheeh International