The Rebbe extends heartfelt Mazel Tov on the bris of the grandson Shlomo Yitzchak, blessing the grandparents with true Yiddishe and Chassidishe nachas. He praises the grandfather’s past efforts, including printing Sdei Chemed and supporting the Rebbe Rayatz’s institutions, and encourages continued broad support, especially for the mosdos in Africa. He adds blessings for the entire family and closes with Purim wishes.

https://www.torahrecordings.com/rebbe/004_igros_kodesh/adar_beis/947