The name of the recipient of this letter was not released.

B”H, 19 Sivan, 5710

Greetings and blessings,

In response to your letter from Friday:

Mazel tov, mazel tov, on your engagement with your partner. May your [marriage] be a binyan adei ad, an everlasting structure,[established] on the foundation of the Torah and its mitzvos, according to the will of my revered father-in-law, the Rebbe, הכ"מ.

In general, the [appropriate] time for weddings in these months1 is Elul or Kislev. In this instance, the primary determin­ing factor [for which month to choose] should be the preparations on the part of the bride.

With regard to putting on tefillin [whose passages are ordered according to the opinion of] Rabbeinu Tam:2 I know of yeshivah students who asked my revered father-in-law, the Rebbe, הכ"מ, if they should put on Rabbeinu Tam’s tefillin and he told them, “It’s a good idea.”

If so, why should putting them on be delayed, [especially] since you have already decided to put them on? See Shaar HaCollel, sec. 11:39, which cites Atzei Eden; Ateres Zekeinim, sec. 34, which cites the Zohar Chadash; Os Chayim by the Munkatcher Rebbe 34:3. It is already stated by R. Chayim Naeh in his Piskei Siddur that he has not heard a reason why most yeshivah students begin to put on Rabbeinu Tam’s tefillin only after their weddings.

With blessings and wishes of mazel tov,

Rabbi Menachem Schneerson