שלום וברכה!
[אמצע שבט תש"ט]
זה עתה נתקבל מכ' מה' שבט, ומש"כ דבקי מוציא כו' מפני דשומע
כעונה - לכאורה אינו דהרי מוציא גם עם שבשדות, ואינו דאינו שייך חלוקת הש"ס דתימא הוא לומר שגם עם שבשדות יקחו חלק בשכר.
נדפסה בקובץ יגדיל תורה ירות"ו גליון יג ע' 66 והיא בהמשך לאגרת תלח דלעיל.
Shalom u'Vrachah! [Middle of Shevat 5709]
Just now your letter from the 5th of Shevat was received, and regarding what you wrote about one who fulfills (the obligation) for others, etc., because 'shomea ke'oneh' (the listener is as one who recites)—seemingly this is not so, for one can fulfill even for those who are in the fields, and it is not applicable to divide the Talmudic tractate by saying that even those in the fields should take part in the reward.
This was printed in Kovetz Yagdil Torah Yerushalayim Vol. 13 p. 66 and is a continuation to letter 438 above.
Summary
The Rebbe clarifies that the principle of shomea ke'oneh extends even to those not physically present, but questions whether all should share equally in the reward, continuing an earlier discussion.