where do i locate and what are the papers called to have my childs father terminate his rights so my husband can adopt the child

where do i locate and what are the papers called to have my childs father terminate his rights so my husaband can adopt the child. the father wants to do this and i just need to send him the paperwork so he can sign it. He is not on the birth certificate nor we we ever married. My child is 3 and he has NEVER seen her. - Is this your question? Add additional information