Using Interest Money to Perform Hajj

Q: Hajj-35: Is it permissible to perform Hajj using interest money?

Answer: is it not permissible to use Haraam money to perform Hajj . Although the obligation of Hajj will be regarded as being discharged, there will be no rewards for the Hajj as it will not be accepted. A Hadith clearly states that when a person performs Hajj with Haraam wealth and calls out Labbaik, Allaah tells him, "Your Labbaik is not accepted and your Hajj is rejected." And Allaah knows best what is most correct.

Fatawa Rahimiyyah vol.3