Ba'al Shem Tov, Kuntres Meirat Einayim 48/בעל שם טוב על התורה·קונטרס מאירת עינים מ״ח

1The great sage Rabbi Menachem Mendel of Lubavitch, author of Tzemach Tzedek, said in the name of his father (the Baal HaTanya), that the Maggid of Mezritch was able to imbue a one day old child with the supernal fear [of Heaven], and that the Baal Shem Tov was able to imbue even inanimate objects with this fear.Beis Rebbe, p. 90b