Sanskrit: अहोरात्रो वै प्रजापतिस्तस्याहरेव प्राणो रात्रिरेव रयिः प्राणं वा एतेप्रस्कन्दन्ति ये दिवा रत्या संयुज्यन्ते ब्रह्मचर्यमेव तद्यद्रात्रौरत्या संयुज्यन्ते  
English:  13  Day and night, verily, are Prajapati. Of these, day is the eater, prana and night, the food, rayi. Those who join in sexual enjoyment by day verily dissipate life; but to join in sexual enjoyment by night is, verily, chastity.