The two hundred forty-seventh "cheider" in the palace of Hayom Yom.
Sunday, 29 Tammuz 5703.
Shiurim: Chumash, Devarim, first parshah with Rashi's commentary.
Tehillim, the 29th of the month — this is the last day of the month of Tammuz, and therefore one recites from chapter 140 until the conclusion of Tehillim, chapter 150.
Tanya: On this day one studies the entire Chapter 9 of Iggeret HaTeshuvah, from the word "uvi'ur" until the conclusion of the chapter, "d'Rosh Hashanah."
The source of the daily saying is in the Rebbe's diary entry, the things he heard from his father-in-law — from the previous Rebbe. In the diary there is a passage preceding the present one, in which it is written that the Tzemach Tzedek said that a Jew must be as fluent in Shas as was the Rambam. There it is told that his son, Rabbi Yehuda Leib, asked him "How about you?" [meaning, what is the state of your fluency now], and the Tzemach Tzedek answered "A few tractates," and began to enumerate them.
Immediately afterward it is written that they found a note in the handwriting of the Rebbe Maharash, which he had copied from the handwriting of his father, the Tzemach Tzedek — and this is the daily saying. "They found a note in the holy handwriting of the Tzemach Tzedek, and its content was that he had resolved to study every day six hours at night, standing, [in the subject of] nigleh, and thank G-d that he fulfilled [this] and covered the entire Talmud Bavli and Yerushalmi and the four sections of the Shulchan Aruch in depth"
Seemingly, what is discussed here is a personal and private matter of the Tzemach Tzedek, who wrote down for himself a private matter; yet nonetheless the Rebbe included it as a saying for the public. And as the Rebbe once said, that even personal matters of our Rebbeim, the Nesi'im, which pertain to them personally between themselves and their own selves — for every matter of a Rebbe is connected to everyone, and consequently even such matters one must know, and evidently one must learn something from them.
The reference to the point he notes here is intriguing — that he studied nigleh at night, standing. For in the introduction to the Shulchan Aruch of the Alter Rebbe, which his sons wrote, they describe a certain period in the life of the Alter Rebbe: "Our master, our father, our teacher and our rebbe" — the Alter Rebbe — reviewed the entire Talmud for the sixteenth time, standing." So there too they emphasize specifically this matter, studying in such a manner, standing; and so it is emphasized here as well in the daily saying.