Reference for Zevachim 12:6

כבשי עצרת שלמים נינהו אלא שעירי עצרת למה הן באין

Come and hear: R'Simeon said: For what purpose are the [sacrificial] lambs of Pentecost brought?<span class="x" onmousemove="('comment',' Lev. XXIII, 18; Num. XXVIII, 27.');">⁶</span> [Surely] the lambs of Pentecost are peace-offerings!<span class="x" onmousemove="('comment',' Whose purpose is to permit the use of the new wheat for meal-offerings and first-fruits.');">⁷</span>

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