צו, פרק ז 1

[א] 'כלי חרש' – אין לי אלא כלי חרש; מנין לרבות כלי נתר? תלמוד לומר "וכלי חרש אשר תבושל בו ישבר". אין לי אלא שבשל בו; ערה לתוכו רותח מנין? תלמוד לומר "אֲשֶׁר תְּבֻשַּׁל בּוֹ יִשָּׁבֵר". אין לי אלא כלי חרש שערה לתוכו רותח; כלי נחושת שערה לתוכו רותח מנין? תלמוד לומר "אֲשֶׁר תְּבֻשַּׁל בּוֹ יִשָּׁבֵר"

1) (Vayikra 6:21) ("And an earthenware vessel in which it is cooked shall be broken. And if it is cooked in a copper vessel, it shall be scoured and rinsed with water.") "an earthenware vessel": This tells me only of an earthenware vessel. Whence do we derive for inclusion (as requiring breaking) a vessel made of alum crystals? From "and an earthenware vessel." "in which it is cooked shall be broken": This tells me only of (a vessel) in which it was cooked. Whence do I derive the same for one into which hot water was poured? From (lit.) "and which shall be cooked in it shall be broken." This tells me only of an earthenware vessel into which boiling water was poured. Whence do I derive the same for a copper vessel? From "and which shall be cooked in it shall be broken."