Bava Metzia

but here, did he know [that he was defrauded], that he should make renunciation! Whilst Samuel can say: My ruling agrees even with R. Meir. Only there does R. Meir state that view, in so far as he certainly rejects  [a Biblical law];  but here, who can say that he disregards  anything at all? R. 'Anan said: I was told on Samuel's authority: If one says to his neighbour. '[I agree to this sale] on condition that you have no claim of overreaching against me,' then he can prefer no claim of overreaching against him. [But if he stipulates,] 'on condition that there is no overreaching therein', then [in case of deceit] a charge of imposition can be preferred. An objection is raised: If one trades on trust,  or if one says to his neighbour. '[This sale is] on condition that you have no claim of overreaching against me,' then he has no claim of overreaching against him.  Now, according to Rab, who maintained, 'My ruling agrees even with R. Judah.'  who is the authority for this? — Said Abaye: It is clear [therefore] that Rab's ruling agrees with R. Meir [only], and Samuel's with R. Judah.  Raba said: There is no difficulty; one refers to a general [condition]; the other to a particular [stipulation]. As it has been taught: When is this said?  Of a general [condition].  But if one explicitly states [that he is overcharging], [e.g.,] if the vendor said to the vendee, 'I know that this article, which I sell you for two hundred zuz, is only worth one hundred, but I sell it to you on condition that you have no claim of overreaching against me,' then he has no claim of overreaching. And likewise, if the Purchaser said to the seller, 'I know that this article which I buy from you for one hundred [zuz] is worth two hundred, [yet I do so] on condition that you have no claim of overreaching against me,' then he has no claim of overreaching against him. Our Rabbis taught: If one buys and sells on trust, he must not compute the inferior goods on trust and the superior at par, but either both on trust or both at par.  And he must pay him the cost of porterage, transport,  and storing;  but he does not receive payment for his own trouble, since he has already been paid in full. Whence was his payment in full given him? — Said R. Papa: This refers to cloth manufacturers, who give [a discount of] four per cent. MISHNAH. BY HOW MUCH MAY THE SELA' BE DEFICIENT AND YET INVOLVE NO OVERREACHING?  R. MEIR SAID: FOUR ISSARS, WHICH IS AN ISSAR PER DENAR  R. JUDAH SAID: FOUR PUNDIONS, WHICH IS A PUNDION PER DENAR.  R. SIMEON SAID: