Related for Yoma 36:4
והאמר רבא תבעוה להנשא ונתפייסה צריכה לישב שבעה נקיים רבנן אודועי הוו מודעו להו מקדם הוו מקדמי ומשדרי שלוחא
But has it not been taught:<span class="x" onmousemove="('comment',' Yeb. 37b');"><sup>7</sup></span> No man should marry a woman in one country and then go and marry a woman in another country lest they [their children]<span class="x" onmousemove="('comment',' 'They' may mean either the children of that man, son and daughter, may meet as strangers; or he might meet his own daughter. The assumption being that he divorces his wife and so loses interest in her child.');"><sup>8</sup></span> might marry one another with the result that a brother would marry his sister or a father his daughter, and one fill all the world with bastardy to which the scriptural passage refers: And the land become full of lewdness?<span class="x" onmousemove="('comment',' Lev. XIX, 29.');"><sup>9</sup></span> - I will tell you: [The affairs of] the Rabbis are well-known.<span class="x" onmousemove="('comment',' Their children, their wives. They would boast of their descent, or of having once been married to a Sage.');"><sup>10</sup></span>