Reference for Menachot 12:8

כי קא אמר רב לבן בתירא פשיטא מהו דתימא עד כאן לא קא מכשר בן בתירא אלא בשמאל אבל בשאר פסולין לא קמ"ל

while Ben Bathyra maintains that one may bring other flour from one's house to make up [the tenth].<span class="x" onmousemove="('comment',' For he is of the opinion that it is the taking of the handful that renders the meal-offering consecrated and not merely the putting of the flour into the vessel.');">⁷</span> But then, how can Ben Bathyra say, HE MUST PUT THE HANDFUL BACK AND TAKE IT OUT AGAIN WITH THE RIGHT HAND?<span class="x" onmousemove="('comment',' Since it is assumed that the handful is no longer here, how can Ben Bathyra say, 'He must put it back'?');">⁸</span>

Jastrow