Reference for Shabbat 127:1
כלי כלי מהתם:
the meaning of utensil' [here] from [the employment of] 'utensil' there, answered he.<span class="x" onmousemove="('comment',' Concerning defilement by dead reptiles it is written, every utensil wherewith any work is done (Lev. XI, 32), and the meaning of 'utensil' is learnt from 'utensil' mentioned in connection with the dead, where ornaments are referred to. Tosaf explains the passage differently: But that … Midian, i.e., it treats of the spoil of Midian and has no bearing upon uncleanness at all? To which Raba replied that as 'utensil' in Lev. XI, 32 refers to uncleanness, so 'utensil' in Num. XXXI. 51 provides a teaching on uncleanness, notwithstanding that this does not appear so from the context. ');"><sup>1</sup></span>