Mahabharata Anushasna Parva Chapter 104:4

Mahabharata Anushasna Parva (Dana Dharma Parva) Chapter 104:4 Without also worshipping the deities first, one should never repair to any person save one's preceptor or one that is old in years or one that is righteous or one that is possessed of wisdom. They that are wise should never see themselves in an unpolished or dirty mirror. One should never have sexual congress with a woman that is unknown or with one that is quick with child. One should never sleep with head turned towards the north or the west. One should not lie down upon a bed-stead that is broken or rickety. One should not sleep on a bed without having examined it first with the aid of a light. Nor should one sleep on a bed with another (such as wife) by one's side. One should never sleep in a transverse direction. One should never make a compact with atheists or do anything in conjunction with them.[] One should never drag a seat with the foot and sit on it. One should never bathe in a state of nudity, nor at night. One possessed of intelligence should never suffer one's limbs to be rubbed or pressed after bathing. One should never smear unguents upon one's body without having first taken bath. Having bathed, one should never wave one's cloth in the air (for drying it). One should not always wear wet clothes. One should never take off one's body the garlands of flowers one may wear. Nor should one wear such garlands over one's outer garments. One should never even talk with a woman during the period of her functional change. One should not answer a call of nature on a field (where crops are grown) or at a place too near an inhabited village. One should never answer a call of nature on a water. One should first wash one's mouth thrice with water before eating any food. Having finished one's meals, one should wash one's mouth thrice with water and twice again. One should eat, with face turned eastwards, one's food, restraining speech the while and without censuring the food that is eaten. One should always leave a remnant of the food that is placed before one for eating. Having finished one's meals, one should mentally touch fire. If one eats with face turned eastwards, one becomes endued with longevity. By eating with face turned southwards, one acquires great fame. By eating with face turned westwards, one acquires great wealth. By eating with face turned northwards, one becomes truthful in speech. Having finished one's meals one should wash all the upper holes of one's body with water.[] Similarly, all the limbs, the navel, and the palms of the hands should be washed with water. One should never seat oneself upon husk of corn, or upon hair, or upon ashes, or upon bones. One should, on no account, use the water that has been used by another for bathing. One should always perform the Homa for propitiating the deities, and recite the Savitri Mantra. One should always eat in a seated posture. One should never eat while walking.