Mahabharata 13.107.93

आचम्य चैव हस्तेन परिस्राव्य तथोदकम्अङ्गुष्ठं चरणस्याथ दक्षिणस्यावसेचयेत्

ācamya caiva hastena parisrāvya tathodakamaṅguṣṭhaṃ caraṇasyātha dakṣiṇasyāvasecayet

Our plain-language meaning of this verse is waiting for scholar review.