Softbody help

First time here, hope my post will be in the right section.

im building a female caracter , and my question is about join 2 parts, normally , Ctrl +j , make the job to join 2 parts, but my problem is i want join a softbody with a solid body,
if i use Crtl+j the entire body will be softbody and will bounce…

how can i connect my vertex or edge from the softbody part to the female solid mesh?

Thank You!

Create a vertex group with weight paint tools. Name it pin .and use hook modifier to assign it to an empty. Parent this empty to your rigid body. In soft body parameters use pin group for static stuffs.
Doing it by memory in a train.
Hope it ll help

Thank You for your help!