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Rav Chaim Ozer on Retracting Hekdesh Within Toch Kdei Dibbur
Rav Chaim Ozer Grodzinski examines whether a designation of an animal as a shelamim can be retracted or qualified within toch kdei dibbur by immediately declaring its offspring an olah instead. The sources explore the interplay between the Rambam's principle that hekdesh cannot be retracted and the narrow window of toch kdei dibbur, in which some halakhic acts may still be modified.
אין הקדש חוזר
Kohanim and Marriage to a Chalutzah
Jewish law prohibits a kohen from marrying a chalutzah (a woman who has undergone the chalitzah ceremony to release herself from levirate marriage). This prohibition applies in all times and circumstances, regardless of whether the chalitzah status is certain or doubtful.
כהן אסור בחלוצה מדרבנן
The Halacha of Canaanite Slaves
The Torah and rabbinic sources establish the laws governing the acquisition, status, treatment, and release of non-Israelite slaves. These sources address the biblical foundations, the detailed mechanisms of acquisition and emancipation, ethical obligations toward such slaves, and protections afforded to fugitives.
עֶבֶד כְּנַעֲנִי נִקְנֶה בַּחֲמִשָּׁה דְּבָרִים
Kaddish for Parents: Eleven Months or Twelve
Sources address the duration of Kaddish recitation for a deceased parent, exploring why the customary practice is eleven months despite the broader twelve-month mourning framework, and examining the halakhic reasoning and various rabbinic positions on this distinction.
נוֹהֲגִין שֶׁאֵין אוֹמְרִים קַדִּישׁ רַק י״א חֳדָשִׁים
Adding to a Mitzvah: Violation or Enhancement
Sources examine the halakhic principle that adding to a commandment may constitute a violation of the prohibition against additions to Torah, even when performed with pious intent. The discussion explores when augmentation of a mitzvah crosses the line from enhancement into transgression.
לא תוסיף אם כשעושה המצוה מפני הספק
Artificial Insemination in Jewish Law
These sources address the halakhic principles governing reproduction, fertility, and the prohibition against wasting seed, which form the foundational framework for evaluating assisted reproductive technologies in Jewish law. The sources span biblical narrative, Talmudic discussion, and codified rulings on procreation and marital obligations.
אָסוּר לְהַפְסִיד אֵיבְרֵי זֶרַע
The Halakhic Process of Conversion to Judaism
These sources establish the legal requirements and spiritual significance of geirus (conversion). They outline the procedural steps—circumcision, immersion, and acceptance of commandments before a rabbinic court—while exploring the theological meaning of joining the Jewish people and attaining full Jewish status.
גֵּר שֶׁבָּא לְהִתְגַּיֵּיר