An-Nisa 4:111

Waman yaksib ithman fa-innamayaksibuhu AAala nafsihi wakana AllahuAAaleeman hakeema

And whoever earns [i.e., commits] a sin only earns it against himself. And Allāh is ever Knowing and Wise.

Whoever commits a sin, commits it only against himself. Allah is All-Knowing, All-Wise.