The Rebbe said, “The words spoken by a great tzaddik contain all the words needed by the whole of Israel. They also include what is needed by every single Jew.
“It is written, ‘These are the words that Moses spoke to all Israel’ (ibid., 1:1). The words spoken by Moses contained everything ‘for all Israel.’ All that every single Jew would ever need.”
שָׁמַעְתִּי בִּשְׁמוֹ: שֶׁהַצַּדִּיק הַגָּדוֹל, בְּהַדִּבּוּר שֶׁהוּא מְדַבֵּר, נִכְלָלִין בּוֹ כָּל הַדִּבּוּרִים הַצְּרִיכִין אֶל כָּל יִשְׂרָאֵל, וְכָל הַדְּבָרִים שֶׁצָּרִיךְ כָּל אֶחָד מִיִּשְׂרָאֵל.
The Rebbe said, “The words spoken by a great tzaddik contain all the words needed by the whole of Israel. They also include what is needed by every single Jew.
וְזֶהוּ (דְּבָרִים א): "אֵלֶּה הַדְּבָרִים אֲשֶׁר דִּבֶּר מֹשֶׁה אֶל כָּל יִשְׂרָאֵל". שֶׁהַדִּבּוּרִים שֶׁדִּבֵּר מֹשֶׁה נַעֲשָׂה מִמֶּנּוּ דְּבָרִים אֶל כָּל יִשְׂרָאֵל. כִּי כָּל אֶחָד מִיִּשְׂרָאֵל מָצָא בּוֹ מַה שֶּׁצָּרִיךְ כַּנַּ"ל.
“It is written, ‘These are the words that Moses spoke to all Israel’ (ibid., 1:1). The words spoken by Moses contained everything ‘for all Israel.’ All that every single Jew would ever need.”