Is it permissible to perform Hajj with money earned from working in a usurious bank?

The expenses for Hajj must be from a lawful source. Working in usurious banks is forbidden, and the earnings from them are impure.

The Prophet, peace and blessings be upon him, cursed the one who consumes usury, the one who feeds it, its scribe, and its two witnesses, and they are all equal in sin.

Whoever performs Hajj with unlawfully gained money, their Hajj is not accepted.

Therefore, one should not perform Hajj with such money. Instead, one should advise those who earn from it to abandon it and choose lawful expenses that are free from any doubt.