get dst-address from src-address

hi, i am having rules like this

add chain=srcnat dst-address=192.168.0.0/16 src-address=192.168.1.0/24

and idea is to get src-addres because it is different on all routers, but this dst address is same.

i tried something like this

:global Forbid [ip firewall nat find src-address where dynamic src-address=“192.168.0.0/16”]

but cant figure out how to exactly grab dst add

i solve it

 :global srcIP [/ip firewall nat get [find where dst-address="192.168.0.0/16"] src-address];