וַיֵּ֗רֶד וַיִּטְבֹּ֤ל בַּיַּרְדֵּן֙ שֶׁ֣בַע פְּעָמִ֔ים כִּדְבַ֖ר אִ֣ישׁ הָאֱלֹהִ֑ים וַיָּ֣שָׁב בְּשָׂר֗וֹ כִּבְשַׂ֛ר נַ֥עַר קָטֹ֖ן וַיִּטְהָֽר׃
Then went he down, and dipped himself seven times in the Jordan, according to the saying of the man of God; and his flesh came back like unto the flesh of a little child, and he was clean.
Read halakhic rulings (Jewish law) on II Kings 5:14 from the Mishneh Torah and classical halakhic sources, free online.