Segment 1
פעם אחת אמר: "הלכה כרב נחמן בדיני", הינו לענין המתנגדים שחלקו עליו בודאי הלכה כמותו, כי הלכה כרב נחמן בדיני.
HIS OPPOSITION The Rebbe once quoted the Talmudic rule, “The accepted opinion is that of Rabbi Nachman in litigation” ( Ketubot 13a) .
Segment 2
כי דיני הוא לשון מחלקת, ששני בני־אדם מחלקין לפני הבית דין על איזה דבר (זה שמעתי בשמו).
He was referring to his opposition. For his opinion was certainly the one accepted on high. “The Talmud states that the accepted opinion is that of Rabbi Nachman in litigation”: Litigation always involves two opposing factions. The courts must decide between them. [I heard this in the name of the Rebbe.]
Segment 3
ועין בגטין פרק השולח שאמרו שם שלש פעמים: הלכה כרב נחמן והלכא כרב נחמן. והלכא כנחמני (גטין לד.).
The Talmud also states, “The decision is like Rabbi Nachman, the decision is like Rabbi Nachman, the decision is like Nachmani.” 317 Gittin 34a. It is repeated three times, like an opinion handed down by a court of law.