Acharonim
Admat Kodesh
Rabbi Nissim Chaim Moshe Mizrachi’s 18th-century responsa and insights on the four sections of the Shulchan Arukh.
Avkat Rokhel
16th-century responsa by R. Joseph Karo, author of the Shulchan Arukh
Be'er Sheva
17th-century responsa by Rabbi Yissachar Eilenburg.
Be'er Yitzchak
19th-century responsa by Rabbi Yitzchak Elchanan Spector, a leading rabbi in Russia.
Binyan Olam
19th-century work of responsa by Lithuanian rabbi Yitzchak Isaac Chaver
Binyan Tziyon
19th-century responsa by a leading German rabbi of the era, the author of the Arukh L’Ner.
Chakham Tzvi
17th-century responsa composed by the rabbi of the Ashkenazi community in Amsterdam, with questions from communities throughout Europe.
Chazeh Hatenufa
14th-century abridgement of selected responsa of the Rosh, compiled by his student and published in the 18th century by the Chida.
Chiddushei HaRim Responsa
19th-century responsa from Rabbi Yitzchak Meir Rotenberg-Alter, founder of the Ger chasidic dynasty.
Divrei Rivot
16th-century collection of responsa by Rabbi Yitzchak Adarbi, leading rabbi in Salonica.
HaElef Lekha Shlomo
19th-century responsa of Rav Shlomo Kluger, arranged according to the sections of the Shulchan Arukh.
Halakhot Ketanot
Compilation of questions and answers from the teachings of 17th-century scholar R. Jacob Chagiz
Havot Yair
17th-century responsa cited frequently by later authorities.
Kerakh shel Romi
19th-century treatises on questions of Jewish law that arose during the author’s time in Rome.
Mateh Levi
19th-century responsa of a leading rabbi in Frankfurt and son-in-law of the Arukh L’Ner.
Melammed Lehoil Part I
20th-century responsa of R. David Zvi Hoffmann on topics discussed in the Orach Chaim section of the Shulchan Arukh
Melammed Lehoil Part II
On topics discussed in the Yoreh De’ah section of the Shulchan Arukh, like ritual slaughter and kashrut.
Melammed Lehoil Part III
On topics discussed in the Even HaEzer (family law) and Choshen Mishpat (financial law) sections of the Shulchan Arukh.
Noda BiYehudah I
Influential 18th-century responsa of R. Yechezkel Landau, known for the primacy it grants to the Talmud as a source of law
Noda BiYehudah II
Second volume published posthumously by the author’s son, who added 60 of his own responsa
Radbaz
16th-century responsa of the chief rabbi of Egypt, with more than 2000 decisions.
Chatam Sofer
Highly influential 19th-century responsa by Rabbi Moses,Sofer, a rabbi dedicated to upholding Orthodoxy in the midst of the Enlightenment.
Maharam of Padua
16th-century collection of responsa by R. Meir Katzenellenbogen
Maharashdam
16th-century responsa composed in Greece.
Rav Pealim
19th-century responsa of the Ben Ish Chai, composed in Baghdad.
Rema
16th-century responsa composed in Poland by the author of the glosses on the Shulchan Arukh.
Sha'agat Aryeh HaChadashot
18th-century work of halakhic discussions by R. Aryeh Leib Ginzburg, published posthumously as an additional section of his Sha’agat Aryeh
Sheilat Yaavetz
18th-century responsa of Rav Yaakov Emden, quoted often by later authorities.
Shoel uMeshiv
19th-century responsa composed in Poland, one of the first to discuss the use of timers on Shabbat.
Teshuva MeAhava Part I
19th-century responsa by a primary student of the Noda B’Yehuda.
Teshuvot Bayit Chadash
17th-century responsa of Rabbi Yoel Sirkis, also known as the Bach.
Teshuvot Maharit
17th-century responsa published posthumously by the author’s children.
Teshuvot Maharshal
16th-century responsa by the author of the Yam Shel Shlomo.
Teshuvot Meshiv Davar
19th-century collection of responsa by R. Naftali Tzvi Yehuda Berlin (Netziv)
Teshuvot Rabbi Akiva Eiger
Collection of responsa by R. Akiva Eiger, a prominent European rabbinic leader during the late-18th and early 19th centuries
Teshuvot Rabbi Akiva Eiger HaChadashot
Additional responsa by Eiger published posthumously in 1938
Teshuvot Rabbi Akiva Eiger Tinyana
Additional responsa by Eiger published posthumously in 1889
Torat Netanel
18th-century responsa composed in Germany by the author of the Korban Netanel, a commentary on the Talmud.
Support Sefaria
Sefaria is an open source, nonprofit project. Support us by making a tax-deductible donation.
Make a Donation