Receiving haraam money as payment for a loan
Q: A person gave a loan from his halaal money to someone with a mostly a halaal income. Later, the person who the money was lent to took a new job in which they earn a mostly haraam income. Is it haraam for the lender to be repaid by the person he lent money to?
Will such a repayment carry any of the spiritually destructive side effects of utilizing haraam wealth? And if there is any evidence from the ulama and fuqaha on this matter, then please share because I could not find anything about this online.