Reference for Yevamot 31:10
עמון ומואב מעשרין מעשר עני בשביעית ומקבלים גרים מן הקרדויין ומן התרמודים
and that proselytes may be accepted from the Cordyenians and the Tarmodites.'<span class="x" onmousemove="('comment',' Despite the opinion of some Rabbis that they were to be regarded as bastards. Cordyene or Kardu was in Babylon; Tarmod or Tadmor, (Palmyra) lay in an oasis of the desert of Syria. [According to Obermeyer (p. 133) the question as to the legitimacy of the offering of the Kardu was on account of the possible intermarriage of the non-Jewish inhabitants with the Jewish converts, won over to Christianity by the Christian missions from Edessa in the first century.] ');"><sup>19</sup></span> A Tanna taught: When they came<span class="x" onmousemove="('comment',' To interview R. Dosa. ');"><sup>20</sup></span>