Translation:Mishnah/Seder Nezikin/Tractate Avot/Chapter 2/16
He [i.e., R. Tarfon [T3]] used to say: it is not [incumbent] upon thee to finish the work, but neither art thou a free man so as to [be entitled to] refrain therefrom
He [i.e., R. Tarfon [T3]] used to say: it is not [incumbent] upon thee to finish the work, but neither art thou a free man so as to [be entitled to] refrain therefrom