How to buy USDT in Saudi Arabia?

I'm curious about the process of acquiring USDT in Saudi Arabia. Could you please elaborate on the steps involved? Firstly, where can I find a reliable and secure platform for purchasing USDT in Saudi Arabia? Secondly, what documents or information do I need to provide to complete the purchase? And lastly, are there any specific regulations or restrictions in Saudi Arabia that I should be aware of before proceeding with the transaction? I would appreciate a detailed explanation on these matters.