Rabbi Ezriel Auerbach is a prominent Haredi

Haredi Judaism

Haredi or Charedi/Chareidi Judaism is the most conservative form of Orthodox Judaism, often referred to as ultra-Orthodox. A follower of Haredi Judaism is called a Haredi ....

 rabbi

Rabbi

In Judaism, a rabbi is a teacher of Torah. This title derives from the Hebrew word רבי , meaning "My Master" , which is the way a student would address a master of Torah...

 and Posek

Posek

Posek is the term in Jewish law for "decider"—a legal scholar who decides the Halakha in cases of law where previous authorities are inconclusive or in those situations where no halakhic precedent exists....

. He is the son of Rabbi Shlomo Zalman Auerbach

Shlomo Zalman Auerbach

Shlomo Zalman Auerbach , was a renowned Orthodox Jewish rabbi, posek, and rosh yeshiva of the Kol Torah yeshiva in Jerusalem, Israel...

, and son-in-law of Rabbi Yosef Shalom Elyashiv, two world-renowned Poskim. He is considered Rabbi Elyashiv's right-hand man in matters of halakha

Halakha

Halakha — also transliterated Halocho , or Halacha — is the collective body of Jewish law, including biblical law and later talmudic and rabbinic law, as well as customs and traditions.Judaism classically draws no distinction in its laws between religious and ostensibly non-religious life; Jewish...

.

Auerbach married Leah Elyashiv (1938–2010), daughter of Rabbi Elyashiv, in 1960. They had no children.

Rulings

In matters of Halachic dispute between Rabbi Shlomo Zalman Auerbach and Rabbi Eliashiv, it would appear that Rabbi Ezriel Auerbach tends to rule privately in accordance with his father, while avoiding a public stand, in deference to his father-in-law. For a possible example of this, see article on Sabbath Mode ovens. For a dilemma

Dilemma

A dilemma |proposition]]") is a problem offering two possibilities, neither of which is practically acceptable. One in this position has been traditionally described as "being on the horns of a dilemma", neither horn being comfortable...

 faced by Rabbi Ezriel Auerbach's wife Leah regarding use of Photochromic lenses

Photochromic lenses

Photochromic lenses are lenses that darken on exposure to ultraviolet radiation. Once the UV is removed , the lenses will gradually return to their clear state...

 on Shabbat

Shabbat

Shabbat is the seventh day of the Jewish week and a day of rest in Judaism. Shabbat is observed from a few minutes before sunset on Friday evening until a few minutes after when one would expect to be able to see three stars in the sky on Saturday night. The exact times, therefore, differ from...

, a matter in which her father and father-in-law are in disagreement, see Teller, lengthy photo caption (unpaginated) following p. 264. (Rabbi Shlomo Zalman Auerbach is the authority who rules leniently on this matter - see Shemiras Shabbos Kehilchasah

Shemirat Shabbat Kehilchatah

Shemirat Shabbat Kehilchatah, also pronounced Shemiras Shabbos Kehilchosoh, is a book of halachah authored by Rabbi Yehoshua Yeshaya Neuwirth, which discusses the laws of Shabbat and Yom Tov, and is viewed by many as an authoritative work regarding these laws...

18:18 and note 70, and Rabbi Shlomo Zalman Auerbach's corrections and comments (published in a separate volume) p. 29).