Board Thread:General Discussion/@comment-4976518-20140808063123/@comment-5553481-20180122124331

Kakorat wrote:

1. No, once you release Bankai you don't need to say the name, however, this was shown only once by Ichigo and Ginjo and never again, so it is entirely possible that this was simply specific to them. Actually, in Soul Society arc, if you remember correctly, Byakuya released Senbonzakura without any phrase against Ganju. Then was about to do the same against Ichigo but Yoruichi put cloth around his blade.