According to your description, there should be no probation period, so you must inform your boss 30 days in advance. After 30 days from the date of notification, you can walk to work whether you can recruit people or not. The boss must pay you. If you ask for leave within these 30 days, you should follow the labor contract or the company's rules and regulations. The boss said that if 1 day does not appear within two months, or 15 days does not appear, it is unfounded. Maybe he was just threatening you.
But there is a problem to remind you that if you want to get your hard-earned money back, you may have to bear the corresponding time and money costs through certain legal channels.