Verse 20

स्थितः सीमान्तकुग्रामगोमये यश्च वृश्चिकः । ।सार्धसंवत्सरं साधो सोऽयं त्वमनुजो मम

In plain words

O good one, the one who dwelt a year and a half as a scorpion in the dung of a wretched border-village -- that one is you, my younger brother.