Hello @Mashhoud Ashraf Thank you for reaching out to us on Microsoft Q&A platform. Happy to help!
I see that you are looking for documentation/source/links on enabling DR in Azure. You can refer to this tutorial - https://learn.microsoft.com/en-us/azure/site-recovery/azure-to-azure-tutorial-enable-replication to set up DR for Azure VMs.
Here is an URL - https://learn.microsoft.com/en-us/azure/site-recovery/azure-to-azure-architecture that talks about Azure to Azure DR architecture
This MS article - https://learn.microsoft.com/en-us/azure/site-recovery/azure-to-azure-support-matrix has all the details about what is support and not-supported.
Hope this helps. Let us know if you have any further questions!