Reference for Bava Batra 286:3
והלכתא כוותיה דרב יוסף בשדה ענין ומחצה
'Subject'<span class="x" onmousemove="('comment',' V. supra 114a, 'so long as they are dealing with the same subject'. ');"><sup>8</sup></span> and 'Half'.<span class="x" onmousemove="('comment',' The case of a testator who expressed the wish that his estate be divided between his wife and his sons, supra 143a. ');"><sup>9</sup></span> A certain [man] once sent home pieces of silk. R. Ammi said: Those which are suitable for the sons [belong] to the sons; [those] suitable for the daughters. [belong] to the daughters. [This,] however, has only been said [in the case] where he has no daughter-in-law, but if he has a daughter-in-law. [it is assumed that] he sent it for his daughter-in-law. If, however, his daughters were not married, [the gift belongs to them because] one would not neglect one's daughters<span class="x" onmousemove="('comment',' Whom it is his duty to maintain. ');"><sup>10</sup></span> and send to his daughter-in-law.