וַיֹּ֤אמֶר יְהוָה֙ אֶל־מֹשֶׁ֔ה שְׁלַח֙ יָֽדְךָ֔ וֶאֱחֹ֖ז בִּזְנָב֑וֹ וַיִּשְׁלַ֤ח יָדוֹ֙ וַיַּ֣חֲזֶק בּ֔וֹ וַיְהִ֥י לְמַטֶּ֖ה בְּכַפּֽוֹ׃
And the LORD said unto Moses: ‘Put forth thy hand, and take it by the tail—and he put forth his hand, and laid hold of it, and it became a rod in his hand—
Find Talmudic references to Exodus 4:4: , passages from the Talmud Bavli and Yerushalmi.