Bava Metzia

is [an] additional [injunction],  and that being so, relate it to the nether and upper millstones [too].  But here, 'save roast with fire' is not [an] additional [prohibition], for it is needed for what has been taught: When one is subject to [the command], Arise and eat 'roast', one is [also] subject to, 'Eat not of it raw;' when he is not subject to the former, he is not subject to the latter. It has been taught in accordance with Rab Judah: If one takes in pledge a pair of barber's shears or a yoke of oxen, he incurs a double penalty.  But if he takes in pledge each part separately, he incurs only one penalty. And another [Baraitha] taught [likewise:] If one took a pair of barber's shears or a yoke of oxen in pledge. I might think that he incurs only one penalty, therefore Scripture teaches, No man shall take the nether or the user millstone to pledge; just as the nether and the upper millstones are distinguished in that they are two objects which [together] perform one operation, and a penalty is incurred for each separately, so all things which are two objects used [together] for one operation, a penalty is incurred for each separately. A certain man took a butcher's knife in pledge. On his coming before Abaye, he ordered him: Go and return it, because it is a utensil used in the preparation of food, and then come to stand at judgment for it [the debt].  Raba said: He need not stand at judgment for it, but can claim [the debt] up to its [sc. the pledge's] value.  Now, does not Abaye accept that logic? Wherein does it differ from the case of the goats which ate some husked barley, whereupon their owner came, seized them, and preferred a large claim [for damages]; and Samuel's father ruled that he can claim up to their value?  — In that case, It was not an object that is generally lent or hired, whereas in this case it is.  For R. Huna b. Abin sent word:  With respect to objects that are generally lent or hired, if a man claims, 'I have purchased them,' he is not believed.  Now, does then Raba disagree with this reasoning? But Raba himself ordered orphans to surrender scissors for woollen cloth and a book of aggada,  which are objects that are generally loaned or hired!  — [No.] These too, since they depreciate in value, people are particular not to loan.