Igros Moshe

Rabbi Moshe Feinstein was recognized during his lifetime as the posek hador, the final decisor in halakhic queries, by much of the world's Orthodox Jewish community, due to his reputation as a talmid chacham with profound knowledge in all areas of Torah.

In 1959, a compilation of these questions related to the laws of Orach Chaim were printed in the first volume of Igros Moshe.

[4] On Israeli Prime Minister Menachem Begin's trip to the United States in 1977, he visited Rabbi Feinstein in his apartment in New York.

Prior to Begin's arrival at the meeting, his security agents combed Rabbi Feinstein's apartment, searching for weapons or explosives that may have been planted there to harm the prime minister.

He did not rely on "this opinion" or "that decision," nor did he automatically follow precedent; rather, the decision was the result of toil in, and depth of understanding of, the relevant Talmudic discussions at the source, following through the classic codes and the views of the great poskim.A certain individual wrote a work with the intention of refuting Igros Moshe.