תהילים כט:ה קבלה: זוהר

At this moment, they heard the great and mighty voice of the tree branches, which were saying, "The voice of Hashem breaks the cedars" (Ps. 29:5). Both Rabbi Elazar and Rabbi Abba fell down on their faces, and a great fear overcame them. They rose hastily and went away, after which they ceased to hear anything. They left the mountain and kept on going.