Study Pesachim folio 42A with parallel Hebrew-English text, traditional commentary, and modern study tools. Free access to Babylonian Talmud online.
It is in accordance with the opinion of R' Yehuda, as it was taught in a baraita: “Either a bull or a lamb that has anything too long or too short, you may offer it as a free-will offering [to the Temple treasury]; but for a vow [as a sacrifice] it shall not be accepted” (Leviticus 22:23). From here
From here I have only derived that he violates a positive mitzva; from where do I derive that he also transgresses a prohibition? The verse states at the beginning of that passage: “And YHWH spoke to Moses saying” (Leviticus 22:17). This introductory statement teaches with regard to the entire porti
The baraita adds that R' Yehuda HaNasi said to Bar Kappara: From where may it be inferred that this is the case? How does R' Yehuda derive his statement that a prohibition applies to the entire portion from the phrase “And YHWH spoke to Moses saying”?
He said to him: As it is written: “Saying [leimor].” R' Yehuda expounds this term as though it read: Say no [lo emor]. In other words, the word no, an expression of prohibition, is stated with regard to the subsequent matters, which means that these mitzvot are categorized as prohibitions.
In the school of Rav they say a slightly different explanation: The term: Saying, can be expounded as if it were written lav emor, meaning: Say a prohibition. In other words, the verse indicates that Moses was instructed to inform the Jewish people of a prohibition. This teaches that any mitzva in