Reference for Bava Batra 192:7

וביותר מכדי מדתו מי פליגי והא תנן

were taken out, [a complete] jug, [therefore] remains over, and one jug [of wine] in two and a half [of water] [is regarded as] good wine. But how can it be said that there is a dispute [at all] in the case when more than the quantity put in [has been taken out]? Surely it has been taught:

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