[אלול ה'תשל"ג]
שלום וברכה!
(1)
כהוראת
רב מורה הוראה.
(2) אחותו תי' ה"ה מבוגרת כו' – והאומנם הסדר שהוא יחליט בעדה
בשאלות
כהנ"ל?!
(3) באם שואל ביפוי כח מאחותו – כדאי שתסתדר בסמיכות לההורים שי' והם ימצאו שם שדכן בעל מרץ שישתדל בנוגע לשידוך מתאים.
אזכיר עה"צ לכהנ"ל.
Elul 5733.
Shalom u'Vrachah!
As per the instruction of a Rav who is a halachic authority.
Your sister, may she live and be well, is older, etc.—is it really proper that he should decide on her behalf in such matters?!
If he is asking with her authorization—it's advisable that she arrange to live near the parents, may they live and be well, and they will find there an energetic matchmaker who will work diligently regarding a suitable shidduch. I will mention this at the Tziyun for success in these matters.
Summary
The Rebbe writes that shidduch decisions for an older sister should not be made by her brother without her consent. He advises involving the parents and finding an energetic matchmaker, and adds that he will pray for success.