Ma’amar Divrei Elokim Chaim handwritten by Rabbi Moshe of Ulla, the youngest son of the holy Rav the Admor HaZaken Ba’al HaTanya and Shulchan Aruch, who wrote many of his father’s Ma’amarim.
Divrei Elokim Chaim by Rabbi Moshe of Ulla, elucidating basic concepts of Ma’marei HaSiddur by his father the Alter Rebbe.
Similar content was printed with variations in Kuntras Peirush HaMilos by his brother the holy Rav Rabbi Dober, the Mittler Rebbe. It appears to be a transcript of these Ma’amarim by his brother, or it is possible he heard them from Chassidim and wrote them down (which would explain the differences)
The Tzaddik Gaon Rabbi Moshe Av Beis Din of Ulla (born ca. 1783), the third and youngest son of the holy Rav the Admor HaZaken Ba’al HaTanya. In the years 1802-1808, he used to repeat his father’s Divrei Chassidus. Some of the Drushim of Admor HaZaken in "Torah Or" and "Likutei Torah" are, "Hanachos" of Rabbi Moshe. Eventually, Ma’amarei HaAdmor HaZaken were published from ‘Hanachos’ handwritten by Rabbi Moshe, proofread by the Admor the Tzemach Tzeddek. He also wrote his own Chiddushim, and his writings indicate his great genius. His father, the Ba’al HaTanya, spoke often about his genius capabilities and his immense power of memory. Rabbi Moshe was the son-in-law of Rabbi Zvi Hirsch of Ulla. After his wedding, he served as Rav in Ulla, solving difficult Halachic Sugyos that came before him. In late 1812, he was captured by Napoleon’s army which invaded Russia, was accused of espionage, and sentenced to death, but was later released. After a debate with the heads of the Russian church, he was kidnapped by them, and they attempted to force him to convert, however, he miraculously managed to escape from them. These tragic events left their mark, inflicting a lot of pain, and he spent the rest of his days moving from town to town in disguise. See the article by Rabbi Eliyahu Matusov “How to research Jewish people of note, chapter 2: Rabbi Moshe, son of Rabbeinu HaZaken” in his book "Ayin Tachat Ayin" (New York, 2014).
[1] sht. by Rabbi Moshe, the son of the Ba’al HaTanya. Strong, clear ink, and easily readable. Very little wear and damage. Age stains. Good–very good condition.