Al-An'am 6:120

Watharoo thahiraal-ithmi wabatinahu inna allatheena yaksiboonaal-ithma sayujzawna bima kanoo yaqtarifoon

And leave [i.e., desist from] what is apparent of sin and what is concealed thereof. Indeed, those who earn [blame for] sin will be recompensed for that which they used to commit.

Leave outward sin and inward sin. Surely, those who commit sin shall be punished for what they used to commit.