Yes, the meat of an animal that is stunned pre-slaughter is Halaal and permissible to consume, provided that the animal is still alive when slaughtered; the details of which follow:
Zaid phones Bakr and instructs him to slaughter an animal for him for Qurbani. Bakr sells Qurbani animals, so he requests Zaid to transfer funds into his account. Zaid sends a fake proof of payment. Bakr hasn't received any fundsand has the meat with him. Can he sell the meat? What options does he have? (Bakr has done the Qurbani for Zaid)