Reference for Yevamot 243:12
וכשבאתי והרציתי הדברים לפני ר"ג שמח לדברי ואמר מצאנו חבר לרבי יהודה בן בבא
AND THAT R. GAMALIEL [THE ELDER] HAD ALLOWED THEIR WIVES TO MARRY AGAIN ON THE EVIDENCE OF ONE WITNESS.<span class="x" onmousemove="('comment',' Who testified that their husbands were dead. [Some texts add: 'And the law was established that (a woman) shall be allowed to marry on the evidence if one witness']. ');"><sup>46</sup></span> AND THE LAW WAS ESTABLISHED THAT [A WOMAN] SHALL BE ALLOWED TO MARRY AGAIN [ON THE EVIDENCE OF ONE] WITNESS [WHO STATES THAT HE HAS HEARD THE REPORT] FROM<span class="x" onmousemove="('comment',' Lit., 'from the mouth of'. ');"><sup>47</sup></span> ANOTHER WITNESS, FROM<span class="x" onmousemove="('comment',' Lit., 'from the mouth of'. ');"><sup>47</sup></span> A SLAVE, FROM<span class="x" onmousemove="('comment',' Lit., 'from the mouth of'. ');"><sup>47</sup></span> A WOMAN OR FROM<span class="x" onmousemove="('comment',' Lit., 'from the mouth of'. ');"><sup>47</sup></span>