Reference for Menachot 164:7

ורבי אליעזר לימא ליה פסח מדבר יוכיח

- It is derived from the class, for all the Passover-offerings from one class.<a rel="footnote" href="#11">¹¹</a> And whence does R'Akiba derive the law that the Passover- offering may be brought only from what is unconsecrated? - He derives it from the following teaching of Samuel in the name of R'Eliezer:<a rel="footnote" href="#12">¹²</a> It is written, This is the law of the burnt-offering, of the meal-offering, and of the sin-offering, and of the guilt-offering, and of the consecration-offering, and of the sacrifice of peace-offerings.<a rel="footnote" href="#13">¹³</a>

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