Yosef Karo

“ If he or another person completed the slaughter but delayed the amount of time it would take to lift up the animal and cause it to lie down, even if1 he slaughtered the greater part of the signs required for slaughter, his slaughter is not acceptable. ”

“ It is forbidden to sell it [this cut animal] to a gentile. Rather he should kill the animal and then sell it to a gentile since he is not an expert in checking the gullet and we must take into account the perforations theirin. ”

“ Therefore after one slaughters most of the signs and the cattle or fowl dies slowly, one should hit it on the head to kill it and not return to slaughter. אחר ששחט רוב אחד בעוף או רוב שנים בבהמה -- אין שהייה פוסלת. ”