Fraud: Accused of Fraud After a Car Dealer Altered a Paystub for a Car Loan Application

My husband I recently applied for a loan to buy a 5th wheel. The dealership altered my husbands pay stub without our permission or our knowledge.
The bank called my husbands company and he was nearly fired and is now under scrutiny.
What can we do about this. I want to take legal actions against this man.
What he did could have seriously hurt our family and cost my husband his job.

Fraud: Accused of Fraud After a Car Dealer Altered a Paystub for a Car Loan Application