Responsa for Yevamot 67:10

בשלמא כולהו משכחת להו דשוינהו שליח ושוו אינהו שליח ופגע שליח בשליח אלא נדות היכי משכחת לה

— Surely, in relation to this it was stated that R. Bibi b. Abaye said: We are here speaking of <i>terumah</i><span class="x" onmousemove="('comment',' Containing 'leaven' or any other hamez. ');">²⁶</span> on the Eve of Passover when time is pressing.<span class="x" onmousemove="('comment',' After a certain hour on that day all hamez, would have to be burnt. ');">²⁷</span> If you prefer I might say: [Our Mishnah speaks] of simultaneous prohibitions, and may represent even the View of R. Simeon.<span class="x" onmousemove="('comment',' Who agrees with R. Meir that simultaneous prohibitions do rank as equal in force, and both may be imposed. ');">²⁸</span>

Teshuvot Maharam