Reference for Bava Batra 261:9

אלא תנאי בית דין שאני הכא נמי תנאי בית דין שאני

[Surely] R. Johanan b. Beroka! Thus it may be inferred [that the law<span class="x" onmousemove="('comment',' Of R. Johanan in our Mishnah. ');">²³</span> applies] even to [the case of] one who is in good health.<span class="x" onmousemove="('comment',' Since here the appointment to heirship was made at the time of the marriage. ');">²⁴</span> R. Papa said to Abaye: Whether according to him who said, [that the reading<span class="x" onmousemove="('comment',' In the Mishnah cited by R. Nathan. ');">²⁵</span>

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