Reference: Sharh ‘Umdatil-Fiqh – Tape 1, Question No.34
Question: If I was offered money [intended] to assist me, and I am aware that its source is haraam, would it be permissible for me to take it?
Response: No, it is prohibited for you [to take it]. So long as you know [the source] is haraam, then it is not permissible for you to take it; it is not permissible for you to [knowingly] benefit from it [in any way].