Reference for Shevuot 29:11

אטו לחמי תודה בעזרה מי לא מתאכלי אלא כירושלים מה ירושלים דבר הנאכל בה ויוצא ממנה נפסל אף עזרה דבר הנאכל בה והיוצא ממנה נפסל

For we learnt: The thanksgiving offering came from five Jerusalem se'ahs, which are equivalent to six wilderness<span class="x" onmousemove="('comment',' I.e., Biblical se'ahs, measures referred to in the Bible, when the Israelites were in the wilderness.');">²¹</span> se'ahs, which are two ephahs, (for an ephah is three se'ahs) ; twenty tenths [of an ephah],<span class="x" onmousemove="('comment',' For it was is made of 6 se'ahs = 2 ephahs; and an ephah is 10 tenths (i.e., omers) : an omer is the tenth part of and ephah (Ex. XVI, 36) .');">²²</span> ten for leavened, and ten for unleavened [loaves]; and the unleavened [loaves] were of three kinds: cakes, wafers, and cakes saturated with oil.<span class="x" onmousemove="('comment',' Lev. VII, 12; ten loaves of each kind were made, so that there were thirty unleavened loaves made from the ten omers; the leavened loaves were only of one kind (Lev. VII, 13) ; so that the ten leavened loaves were equal to the thirty unleavened loaves; each leavened loaf was, therefore, three times the size of an unleavened loaf (Men. 77a) .');">²³</span>

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