Yoreh Deah Siman 26 Seif 1

 

סימן כו – דין נקב בושט או בבני מעים קדם (גמר)השחיטה, ובו ב’ סעיפים

Siman 26 The law if there is a puncture in the esophagus or the intestines before the ritual slaughter has been completed

א נִקַּב הַוֵּשֶׁט בִּשְׁעַת שְׁחִיטָה כְּנֶגֶד הַמָּקוֹם שֶׁשָּׁחַט כְּבַר,טְרֵפָה.

 

Seif 1

 

If there is a puncture in the esophagus during the slaughter and its the opposite  the spot of slaughter, its considered Torn (not acceptable).