וַיִּשְׁלַ֥ח אֵלָ֛יו אֱלִישָׁ֖ע מַלְאָ֣ךְ לֵאמֹ֑ר הָל֗וֹךְ וְרָחַצְתָּ֤ שֶֽׁבַע־פְּעָמִים֙ בַּיַּרְדֵּ֔ן וְיָשֹׁ֧ב בְּשָׂרְךָ֛ לְךָ֖ וּטְהָֽר׃
And Elisha sent a messenger unto him, saying: ‘Go and wash in the Jordan seven times, and thy flesh shall come back to thee, and thou shalt be clean.’
Read halakhic rulings (Jewish law) on II Kings 5:10 from the Mishneh Torah and classical halakhic sources, free online.