My 6yo just prayed for his sick friend unprompted

I'm not even sure why I'm tearing up typing this but my youngest found out his best friend from kindergarten has leukemia. Without me asking he just grabbed my hand and prayed for healing. Asked God to make him feel better and to help his mom. I don't always know if what we're teaching is sticking but moments like this remind me that faith is real to him not just something dad talks about.