Interesting Letter by the Slonim Rebbe, Author of Beit Avraham - Sending a Chassid to Consult with the Chortkov Rebbe

An autograph letter signed by R. Avraham Weinberg, third rebbe of the Slonim dynasty, [Białystok, Av 1929].
A hearty letter, flowing with blessings for good health, sent to a Chassid from Eretz Israel who traveled to Vienna for medical reasons, with detailed instructions and attentiveness to all specifics of his spiritual and material needs. The Slonim Rebbe instructs this Chassid to consult Rebbe Yisrael of Chortkov. The Rebbe writes that he "almost certainly" will go to the [second] World Congress of Agudat Yisrael" which was to take place in Vienna [in the month of Elul 1929] and he suggests that his follower wait in Vienna until he arrives so they can "deliberate about the matter". However, he immediately adds: "and if the Chortkov Rebbe agrees that you travel home, do so with supervision and with a complete recovery…". After his signature appears an addition, signed "the above-mentioned".
Rebbe Avraham Weinberg (the second) of Baranovichi, author of Beit Avraham (1884-1933) was the son of the author of Divrei Shmuel. From 1916, he jointly led the Slonim Chassidim with his eldest brother R. Yissachar Leib, however the majority of Chassidim followed R. Avraham. He settled in Baranovichi where he established the Torat Chesed Yeshiva. He maintained close contact with his Chassidim in Eretz Israel, which he visited twice. His books, Beit Avraham, are well-known for their profound Chassidic philosophy.
Postcard, 14.5 cm. Approximately 19 handwritten lines. Good condition. Folding creases and slight wear.