Reference for Menachot 12:7
אי הכי בן בתירא אומר יחזיר ויחזור ויקמוץ בימין בן בתירא אומר יחזיר ויביא מתוך ביתו וימלאנו ויחזור ויקמוץ בימין מיבעי ליה
If so, is not this identical with Ben Bathyra's view? - In the case where the handful is stil here the Rabbis do not differ with Ben Bathyra at all;<span class="x" onmousemove="('comment',' All hold that the handful should be put back and taken out again by the proper person.');"><sup>5</sup></span> they differ only where the handful is no longer here, the Rabbis maintaining that one may not bring other flour from one's house to make up [the tenth],<span class="x" onmousemove="('comment',' The vessel, which held a tenth part of an ephah, in which, according to the view of the Rabbis, the meal-offering was consecrated. If after the consecration in this vessel the flour of the meal-offering had been diminished it at once becomes invalid.');"><sup>6</sup></span>