Mahabharata Drona Parva Chapter 184:2

Mahabharata Drona Parva (Drona-vadha Parva) Chapter 184:2 Many amongst the foe, entirely stupefied by slumber, were slain without their being conscious (of the strokes that launched them into eternity). Beholding this condition of the soldiers, O bull among men, Vibhatsu in a very loud voice, said these words: "all of you, with your animals, are worn out with exertion and blind with sleep. Ye warriors, ye are enveloped in darkness and with dust. Therefore, if ye like, ye may rest. Indeed, here, on the field of battle close your eyes for a while. Then when the moon will rise, ye Kurus and Pandavas, ye may again, having slept and taken rest, encounter each other for the sake of heaven." Hearing these words of the virtuous Arjuna, the virtuous warriors (of the Kuru army) assented to the suggestion, and addressing one another, loudly said, "O Karna, O Karna, O king Duryodhana, abstain from the fight. The Pandava host hath ceased to strike us." Then at those words of Phalguna, uttered loudly by him, the Pandava army as also thine, O Bharata, abstained from battle. Indeed, these noble words of Partha were highly applauded by the gods, the high-souled Rishis, and all the gladdened soldiers. Applauding those kind words, O Bharata, all the troops, O king, worn out with exertion, laid themselves down for sleep, O bull of Bharata's race. Then that army of thine, O Bharata, happy at the prospect of rest and sleep, sincerely blessed Arjuna saying, "In thee are the Vedas as also all weapons! In thee are intelligence and prowess! In thee, O mighty armed one, are righteousness and compassion for all creatures, O sinless one! And since we have been comforted by thee, we wish thy good, O Partha! Let prosperity be to thee! Soon do thou get, O hero, those objects that are dear to thy heart!" Blessing him thus, O tiger among men, those great car-warriors, overcome with sleep, became silent, O monarch! Some laid themselves down on horseback, some on the car-boxes, some on the necks of elephants, and some on the bare ground. Many men, with their weapons and maces and swords and battle axes and lances and with their armours on, laid themselves down for sleep, apart from one another. Elephants, heavy with sleep, made the earth cool with the breath of their nostrils, that passed through their snake-like trunks spotted with dust. Indeed, the elephants, as they breathed on the ground, looked beautiful like hills scattered (on the field of battle) over whose breasts hissed gigantic snakes. Steeds, in trappings of gold and with manes mingling with their yokes, stamping their hoofs made even grounds uneven. Thus every one, O king, slept there with the animal he rode. Thus steeds and elephants and warriors, O bull of Bharata's race, very much worn out with exertion, slept, abstaining from battle.