Reference for Bava Batra 297:4

אמר רבא היכי ניקנינהו רב מרי להני זוזי אי בירושה לאו בר ירושה הוא אי במתנה מתנת שכיב מרע כירושה שויוה רבנן כל היכא דאיתיה בירושה איתיה במתנה כל היכא דליתיה בירושה ליתיה במתנה

— Come and hear: The proselyte Issur<span class="x" onmousemove="('comment',' Issur, while still a heathen, had married Rachel, one of Mar Samuel's captive daughters. (Cf. Keth. 23a). While she was in her pregnancy and before she gave birth to the child (the future R. Mari). Issur embraced Judaism; and Mari was accordingly born from parents both of whom professed the Jewish faith, while his conception took place when one of them was still a heathen. ');">¹³</span> had twelve thousand <i>zuz</i>: [deposited] with Raba. The conception of his son R. Mari was not in holiness,<span class="x" onmousemove="('comment',' l.e., while his father was still a heathen.V. n. 15. Hence he was not entitled to the heirship of his father's estate (v. Kid. 18a). ');">¹⁴</span> though his birth [was] in holiness, and he was [then] at school. Raba said: How could Mari gain possession of this money? If as an inheritance; [surely] he is not entitled to [it as] an heir.<span class="x" onmousemove="('comment',' V. p. 644, n. 16, ');">¹⁵</span> If as a gift; the gift [surely] of a dying man has been given<span class="x" onmousemove="('comment',' Lit., 'made'. ');">¹⁶</span> by the Rabbis [the same legal force] as [that of] an inheritance, [and consequently], whosoever is entitled<span class="x" onmousemove="('comment',' Lit., 'where he is'. ');">¹⁷</span>

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