Introducing a baby rabbit to an adult male rabbit

by Sherry
(Florida )

Hi everyone,
I'm a rabbit mom, my rabbit is almost 7 years.
He's my only rabbit, I recently tried introducing a baby bunny to him, he was grooming the bunny at first so I thought all is well. He then sniffed under the bunny's tail and got vicious started growling and tried to attack the baby. Advice please...

I want to adopt this baby but I'm very scared the adult bunny would kill the baby.

Thanks