Kautilya's Arthashastra 14.3.68

14.3.68

varāhabhastrām ucchvāsamṛttikayā pūrayitvā markaṭasnāyunāvabadhnīyāt, ānāhakāraṇam //

When the sack-like skin of the abdomen of a dog or a boar is filled with the breathed-out dirt (uchchhvásamrittika) of a man or woman and is bound (to the body of a man) with the ligaments of a monkey, it causes the man's body to grow in width and length (ánáha),