It looks like there currently aren't any rules against it, see this article for example, ( although this is primarily about ICO's, i am pretty sure it applies to mining aswell) https://news.bitcoin.com/saudi-central-bank-says-cryptocurrency-industry-is-not-mature-enough-to-warrant-regulation/

However, i'm not sure if it could be seen as "halal" or would be appropriated in your religion. I guess this is also primarily opinion-based, and i don't think anyone could answer that for you.

https://www.youtube.com/watch?v=Gctxeh0uwtk
https://www.youtube.com/watch?v=3R4VkehFGzg