I recently saw a teshuva by Rabbi Moshe Feinstein, Ohrach Chaim Volume 1 Teshuva 109, that quotes a letter from Rabbi Menashe Klein asking a question on Rabbi Moshe's psak but saying that he does not ...
The last paragraph of Igros Moshe O.C. 2:40 discusses when you may order kosher food [such as a banana] in a non-kosher restaurant. R' Moshe Feinstein begins: ובדבר אם מותר לאכול ברעסטאראנט ...
I have asked this question to many people without every getting an answer. Perhaps someone on this forum has some information. All of the achronim that I have found, who address the issue in ...
Reb Moshe Feinstein was once interviewed by the New York Times where he answered questions like how does Klal Yisroel know who is a Gadol? Does anyone know when it was, and does anyone know where I ...
What is the underlying argument between the Chazon Ish and Rabbi Chaim Naaeh and Reb Moshe Feinstein? I know they argue in amounts, but what is the underlying argument? How did each get the ...
Did Rabbi Dovid Feinstein of Uzda wear tefilin that were Ktav Ari or Ktav Beit Yosef? What about his son?
The biographical sketch of Rabbi Moshe Feinstein that appears in the beginning of Igrot Moshe volume 8 states that his father, Rabbi Dovid Feinstein of Uzda, was born and raised Hassidic, but took on ...
Did Rabbi Moshe Feinstein ever formally receive semicha? From whom? I recall reading that he studied a great deal with his father, and that his first responsum was written "at his father's orders."
In this recorded lecture, Rabbi Akiva Tatz mentions that R' Moshe Feinstein (who famously did not prohibit smoking, though see here) forbade a person from handing a lighter to a person who smokes ...
I have heard that Rav Moshe Feinstein ztsl held that tzitzis should be tucked in. Can somebody give a nice summary of the reasons behind his ruling?