Reference for Menachot 18:18

והא מיבעי ליה לגופיה שמאלית אחרינא כתיב

and the other to the case where the remainder had diminished between the taking of the handful and the burning thereof.<span class="x" onmousemove="('comment',' In which case the handful may not be burnt, again contra R. Johanan.');">²⁶</span> This then is a refutation of both views of R'Johanan, is it not? - No, one verse refers to the case where the meal-offering had diminished before the taking of the handful, in which case if he brings more [flour] from his house and makes up the measure it is [valid], otherwise it is not [valid].

Jastrow