A long letter of halachic responsum on the laws of "niddah", handwritten and signed by Rabbi "Mordechai ben Rabbi Yehoshua Katz" Rabbi of Sheps, sent to the Torah genius Rabbi Avraham Landau Rabbi of Tshekhanov. Sheps (Sierpc, North Poland), [after 1841].
Rabbi Mordechai ben Rabbi Yehoshua HaCohen Greebaum, was certified for Torah rulings by Rabbi Akiva Eiger who described him as a Torah genius, [in the introduction to "Oznei Yehoshua" by his grandson Rabbi Yehoshua Segal (Jerusalem, 1914), a story appears about him that he used to teach the sons of Rabbi Shlomo Eiger. When he reached their home, the grandfather Rabbi Akiva Eiger tested his grandson Rabbi Leib'le and said in amazement that the teacher is a genius and not a simple "melamed". When Rabbi Mordechai appeared before him and they discussed Torah thoughts, Rabbi Akiva Eiger told Rabbi Mordechai that a genius like him must serve as rabbi and he wrote him a "hora'ah" permit]. Rabbi Mordechai served in the Neustadt rabbinate near Warsaw and from 1841 he served in the Sheps rabbinate for 18 years until his death in 1859. After his death, the Sheps community was divided into two communities, and his son-in-law Rabbi Moshe Yosef Segal was appointed Rabbi of the small community, which existed separately until 1884.
The recipient of the letter: Rabbi Avraham Landau Rabbi of Tshekhanov (1789-1875), author of "Zechuta D'Avraham", a holy man and a leading Torah genius in Poland, served in the Tshekhanov rabbinate from 1799 and many rabbis in Poland studied in his yeshiva. His sons and grandsons served as rebbes.
4 pages. Approximately 33 cm. Fair condition, wear to margins and folds, thin paper and ink blurs.