His hands were bound with rope.
binding
/ˈbīn-diŋ/
noun
the action of one that binds
a material or device used to bind: such as
the cover and materials that hold a book together
adjective
that binds
imposing an obligation
verb
to make secure by tying
to confine, restrain, or restrict as if with bonds
to put under an obligation
… she was not wholly bound in mind by her middle-class existence