अचक्षुर्विषयं दुर्गं न प्रपद्येत कर्हि चित् । न विण्मूत्रमुदीक्षेत न बाहुभ्यां नदीं तरेत् ॥ ७७ ॥
Let him never enter a place, difficult of access, which is impervious to his eye; let him not look at urine or ordure, nor cross a river (swimming) with his arms.