What is the ruling on obtaining a medical report for study purposes for a period of 10 days with the knowledge and approval of the official in charge, knowing that such a report is not usually granted for this duration, and is it permissible to be absent with administrative permission while donating the value of the days of absence to an endowment or a charitable organization?

It is not permissible to request or issue a medical report if it does not conform to reality, due to the deception, falsehood, and betrayal of trust involved. As for absence with administrative permission, one should refer to the work regulations and system. If the system permits it and the administration is authorized to issue it, then there is no harm, and donating the salary is not required. However, if the system does not permit it or the administration is not authorized, then it is not permissible, and if you are absent, you must return the salary for the days of absence to the employer or donate it.