A Lifetime Companion to the Laws of Jewish Family Life, Part Three; The Life Cycle, Chapter 3; Pregnancy

Can copy this into an AI, or connect the whole library to your assistant. For deeper learning, you can directly use the original seforim, sites, and apps.

רַבִּי אֱלִיעֶזֶר אוֹמֵר אַרְבַּע נָשִׁים דַּיָּן שְׁעָתָן: בְּתוּלָה, מְעֻבֶּרֶת מֵנִיקָה וּזְקֵנָה. (משנה; נדה א:ג)