Al-An'am 6:88

Thalika huda Allahiyahdee bihi man yashao min AAibadihi walaw ashrakoolahabita AAanhum ma kanoo yaAAmaloon

That is the guidance of Allāh by which He guides whomever He wills of His servants. But if they had associated others with Allāh, then worthless for them would be whatever they were doing.

That is Allah’s guidance. He guides with it whomsoever He wills from among His servants. Had they associated partners with Him, all they did would have been nullified for them.