Commentary for Kiddushin 68:13

ונילף מתלמוד תורה משום דהוה ליה תלמוד תורה ופריה ורביה שני כתובים הבאים כאחד וכל שני כתובים הבאים כאחד אין מלמדים

But on the view that they do, what may be said?<span class="x" onmousemove="('comment',' Let us deduce liability of women in regard to all affirmative precepts limited to time.');">²⁰</span> Furthermore, [that] affirmative precepts not limited to time are binding upon women; how do we know it? Because we learn from fear:<span class="x" onmousemove="('comment',' I.e., the precept to fear one's parents, Lev. XIX, 3, which, as deduced supra 29a, applies to both sexes.');">²¹</span> just as fear is binding upon women, so are all affirmative precepts not limited to time incumbent upon women. But let us [rather] learn from the study of the Torah?<span class="x" onmousemove="('comment',' Which is occasioned by time and yet not obligatory upon women.');">²²</span> - Because the study of the Torah and procreation<span class="x" onmousemove="('comment',' Likewise not limited in time and not incumbent upon women.');">²³</span> are two verses which teach the same thing,<span class="x" onmousemove="('comment',' Viz., that women are exempt.');">²⁴</span> and wherever two verses teach the same thing, they do not illumine [others].

Daf Shevui to Kiddushin