ו וכי תימא רבי היא ובעונות סבר לה כר"א ומי סבר לה והא לאחר שנזכר קאמר אלא ר"א היא ובוסתות סבר לה כרבי
6 A stain [discovered by one who had not yet reached the age of menstruation] between her first and second [observation of a discharge] is regarded as clean,<span class="x" onmousemove="('comment',' I.e., it is not deemed to be due to menstrual blood. Cf. supra 5a. ');"><sup>11</sup></span> but as regards one discovered between her second and third observation, Hezekiah ruled: It is unclean, while R. Johanan ruled: It is clean. 'Hezekiah ruled: It is unclean', since, when she observed [a discharge for the third time] she becomes unclean [retrospectively],<span class="x" onmousemove="('comment',' Which shows that her presumptive menstruation begins after her second discharge. ');"><sup>12</sup></span> her stain also<span class="x" onmousemove="('comment',' Since it appeared at a period of (cf. prev. n.) presumptive menstruation. ');"><sup>13</sup></span> causes her to be unclean; 'while R. Johanan ruled: It is clean,' for this reason: Since<span class="x" onmousemove="('comment',' At the time the stain was discovered. ');"><sup>14</sup></span> she was not yet confirmed in the condition of presumptive menstruation<span class="x" onmousemove="('comment',' This condition being established retrospectively only after the appearance of a third discharge. ');"><sup>15</sup></span>