Reference for Pesachim 127:5

רבי יהודה אומר אף התמיד וכו': מאי טעמא דרבי יהודה אמר לך (שמות כג, יח) זבחי זבח המיוחד לי ומאי ניהו תמיד:

read it, 'a sacrifice,' 'My sacrifices'.<span class="x" onmousemove="('comment',' I.e., by transferring the yod () from one to the other, we have , , a 'sacrifice' referring to the Paschal lamb, and , 'My sacrifices', plural, referring to all others.');">⁸</span> For what law did the Divine Law divide them from one another and not write 'My sacrifices' [in one word]? To intimate: when there is 'a sacrifice' [viz. , the Paschal lamb], you are not liable on account of 'My sacrifices'; when there is no 'sacrifice,' you are liable for 'My sacrifices'.

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