Hello, i have an issue and i do not know how to go around geeting a fix.

I have a 10.0.0.0/8 backbone connecting all routers in the diagram attached
From there, the routers 2 and 3 have a backbone of thier own of 13.0.0.0/8 and 14.0.0.0/8.
Then lans come off those 2 and 3 routers of 192.168.120.0/24 and 192.168.190.0/24.

My issue is i want Routers 2 and 3 to send all routes static and connected to router 1. but i do not want router 2 to send anything to router3 and vise versa. Only router 1 is to be redistributed to.

Any help would be greatly appriciated!!

If you only have the mentioned segments I would use static routes.
Add firewall rules to block unwanted traffic.