Gabriel doesn't hear the words, but he definitely gets the gist of the threat, and he feels the burst of pain as Yuri's paw twinges. Getting this over quickly is in everyone's best interest, including Yuri's.

Deciding quickly, Gabriel teleports beside Yuri while the illusory version of himself keeps him distracted. He places a hand against Yuri's side and focuses his energy on putting him to sleep. Nothing happens. "Fuck." Gabriel lets out a string of curses and teleports a few feet back, stumbling backwards into a tree as he struggles to keep to his feet. With an animal, that would have worked, but Yuri isn't quite an animal. "I need to get to his head." Preferably without getting eaten.