Talmud for Rosh Hashanah 44:5
אי הכי מאי למימרא מהו דתימא מספיקא לא מחללינן שבתא קמ"ל
Has it not been taught, 'On one occasion R'Nehorai accompanied the witness to testify to his bona fides on Sabbath in Usha'?<span class="x" onmousemove="('comment',' At the time when the Beth din was in Usha.');"><sup>4</sup></span> - I can reply that there was another witness along with R'Nehorai, and the reason why he was not mentioned was out of respect for R'Nehorai.<span class="x" onmousemove="('comment',' I.e., so as not to put him on the same footing as R. Nehorai. Cf. Git. ');"><sup>5</sup></span> R'Ashi said: In R'Nehorai's case there was [already] another witness in Usha,<span class="x" onmousemove="('comment',' This witness may have been either one who had seen the new moon, or one who could testify to the bona fides of the man who has seen it. V. trvx Tosaf. s.v. .');"><sup>6</sup></span> and R'Nehorai went to join his testimony with his.