What is the ruling on two doctors dividing 24 hours of work between them, where each works 12 hours, but they sign for 24 hours of attendance, with the knowledge of the manager who denies his knowledge when a problem arises?

The Muslim employee must fulfill the contract with his employer. Doctors signing in for 24-hour shifts and then leaving during that time to work elsewhere or for no valid excuse involves breach of contract, lying, deception, earning unlawful money, and disruption of work. The manager's knowledge does not make this permissible. Employees must repent and commit to performing their duties.