Setting up partners with God or making anything unlawful never happens under the will of God!

 

Verses 148-149 of Chapter 6

Those who give partners (to Allah) will say: “If Allah had wished, we should not have given partners to Him nor would our fathers; nor should we have had any taboos.” So did their ancestors argue falsely, until they tasted of Our wrath. Say: “Have ye any (certain) knowledge? If so, produce it before us. Ye follow nothing but conjecture: ye do nothing but lie.” Say: “With Allah is the argument that reaches home: if it had been His will, He could indeed have guided you all.”