Source 1 · Acharonim
ExternalIgrot Moshe, Yoreh De'ah 1:101
Responsa Igrot Moshe Yoreh De'ah 1:101
Rav Moshe Feinstein discusses the halakhic issues surrounding women immersing on Friday night / before Shabbat, including concerns about preparation, timing, and practical leniencies or restrictions in cases of need.

Igros Moshe is not freely available in text. This PDF surfaced in our research. Please use the feedback buttons below to help us improve.
Source 2 · Acharonim
ExternalIgrot Moshe, Orach Chayim 4:1
Igrot Moshe Orach Chayim 4:1
R. Moshe Feinstein addresses a practical question related to Shabbat preparation and timing, fitting the user's stated focus on Igrot Moshe. This is the kind of responsum to consult for a concrete ערב שבת question.

Igros Moshe is not freely available in text. This PDF surfaced in our research. Please use the feedback buttons below to help us improve.
Source 3 · Acharonim
VerifiedShenei Luchot HaBerit, Shaar HaOtiyot, Hilchot Biah 2:17
Shenei Luchot HaBerit, Shaar HaOtiyot, Hilchot Biah 2:17
When a wife's husband is in town, her immersion is a Torah obligation, and therefore the author permitted a woman to immerse on the night of Shabbat that fell on Tisha b'Av, since most poskim rule leniently; although the Rema ruled stringently in the Hagah, in the case of a mitzvah the stringency does not apply.
מטעם הנ"ל כשבעלה בעיר הוא טבילת מצוה, התרתי לאשה לטבול בליל שבת שחל תשעה באב בו, מאחר שרוב הפוסקים פסקו להתיר. אף שרמ"א בהג"ה (או"ח תקנד, יט וע"ע יו"ד קצז, ב) כתב לחומרא, מכל מקום מצוה שאני.