An-Nisa 4:105

Inna anzalna ilayka alkitababilhaqqi litahkuma bayna annasibima araka Allahu wala takun lilkha-ineenakhaseema

Indeed, We have revealed to you, [O Muḥammad], the Book in truth so you may judge between the people by that which Allāh has shown you. And do not be for the deceitful an advocate.

Surely, We have revealed to you the Book with the truth, so that you may judge between people according to what Allah has shown you. Do not be an advocate for those who breach trust.