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ذَٰلِكَ هُدَى ٱللَّهِ يَهۡدِي بِهِۦ مَن يَشَآءُ مِنۡ عِبَادِهِۦۚ وَلَوۡ أَشۡرَكُواْ لَحَبِطَ عَنۡهُم مَّا كَانُواْ يَعۡمَلُونَ
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.