Reference for Chullin 5:4

בְּאַרְבָּעָה פְרָקִים אֵלּוּ מַשְׁחִיטִין אֶת הַטַּבָּח בְּעַל כָּרְחוֹ. אֲפִלּוּ שׁוֹר שָׁוֶה אֶלֶף דִּינָרִין וְאֵין לוֹ לַלּוֹקֵחַ אֶלָּא דִינָר, כּוֹפִין אוֹתוֹ לִשְׁחֹט, לְפִיכָךְ, אִם מֵת, מֵת לַלּוֹקֵחַ. אֲבָל בִּשְׁאָר יְמוֹת הַשָּׁנָה, אֵינוֹ כֵן. לְפִיכָךְ, אִם מֵת, מֵת לַמּוֹכֵר:

On the mentioned four periods [or days], a butcher can be compelled to slaughter cattle against his will. Even if he had an ox worth a thousand dinars, and there was a purchaser for only a single dinars worth of meat, he will be compelled to slaughter it. Hence, should the animal die meanwhile [naturally], the loss falls on the purchaser; but it is not so at other times, for when the animal then dies of itself, the loss falls on the seller [or butcher].

Explore reference for Chullin 5:4. In-depth commentary and analysis from classical Jewish sources.