Shmuel Menachem Mendel Liberov is addressed in the correspondence as a student who sought guidance from the Lubavitcher Rebbe, Rabbi Menachem Mendel Schneerson, regarding the customs of daily Torah study.
In a letter dated 16 Iyar, 5711 (1951), the Rebbe responds to Shmuel Menachem Mendel Liberov's inquiry about the practice of studying the daily portion of Chumash with Rashi. The Rebbe clarifies that the general custom is to study the assigned portion during the day, and if it is not completed, it may be made up at night. Additionally, the Rebbe notes that he has not heard of any particular stringency regarding the specific order in which Chumash, Tehillim, and Tanya are studied. The tone of the letter is warm and encouraging, concluding with a blessing for success in all matters.