Prometheus remote_write with TLS certs

Hi, We have configured the Prometheus remote_write and its working fine. Now we would like to configure the TLS certs so that communication will happen over https.
For this, sender prometheus should configure the tls certs but the question is do I have to configure the tls at the receiving prometheus as well ?

It is the receiver that you must configure the certs on. The receiver acts as an HTTPS server and the sender makes POST requests to it. The sender must trust the CA certificate of the receiver. If you are using your own self-signed CA, then you must place a copy of the CA cert in the trusted certificate store of the host running the sender.

If you want mutual TLS (I think it can be done), then both ends need a cert issued by the same certificate authority.