A business hired a repairman to overhaul their plumbing system. The repairman began work on September 15 and completed it on October 15. The business agreed to pay him $4,000 when the work was completed. As of September 30, the work was 50% complete and the business made an adjusting entry to accrue repair expense as of the end of September. On October 15, the work was completed and the business paid the repairman in full. Provide the journal entry for the cash payment on October 15.