JPMorgan Chase & Co. dropped Al- Rajhi Bank, the world’s largest Shariah-compliant lender, as a correspondent banking client amid a push to improve risk controls. The relationship with the bank ended Dec. 31 because JPMorgan couldn’t get enough information on where payments in dollar-clearing services for Al-Rajhi had originated. JPMorgan said it cut off the service to about 500 foreign lenders last year as regulators press the world’s biggest banks to verify that transactions are used for legitimate business. The crackdown seeks to halt funds tied to money laundering, terrorism and countries covered by economic sanctions. The two banks haven’t been cited by U.S. regulators for involvement in illegal money transfers.