Is it permissible for an employer to delay employees' salaries for three months while still paying zakat?

It is not permissible to delay employees' salaries beyond their due time, which is upon completion of work or the end of the agreed-upon period for a monthly salary. Delaying it without an excuse is considered procrastination and injustice. Allah commanded that wages be given immediately upon completion of work, and the Prophet, peace and blessings be upon him, forbade delaying a worker's wage after he has finished his work. The procrastination of the rich is an injustice that makes his honor and punishment permissible. However, if both parties agree and consent to delay the payment for a specific period, then there is no harm in that.