One should not, while bathing, repeatedly dip his head in water. By so doing one shortens one's life. One who has bathed by dipping the head in water should not, afterwards put oil to any part of his body.
न चाभीक्ष्णं शिरःस्नायात् तथा यायुर्न रिष्यते॥ शिरःस्नातस्तु तैलैश्च नाङ्गं किंचिदपि स्पृशेत्।