Mahabharata Anushasna Parva Chapter 142:4

Mahabharata Anushasna Parva (Dana Dharma Parva) Chapter 142:4 That man who, having observed vows with respect to food, practises penances for two and twelve years, carefully abstaining from all interdicted food, taken at forbidden hours, during the periods becomes in his next life a ruler of earth.[] That man who sits and lies on the bare ground with the cope of the firmament alone for his shelter, observes the course of duties that attach to Diksha, and then casts off his body by abstaining from all food, attains to great felicity in Heaven. The rewards of one who sits and lies down upon the bare ground (with the welkin alone for his shelter) are said to be excellent vehicles and beds, and costly mansions possessed of the resplendence of the moon, O lady! That man who, having subsisted upon abstemious diet and observed diverse excellent vows, lives depending upon his own self and then casts off his body by abstaining from all food, succeeds in ascending to heaven and enjoying all its felicity. That man who, having lived in entire dependence upon his own self, observes for two and ten years the duties that appertain to Diksha, and at last casts off his body on the great ocean, succeeds in attaining to the regions of Varuna after death. That man who, living in entire dependence upon his own self observes the duties that attach to Diksha for two and ten years, and pierces his own feet with a sharp stone, attains to the felicity of the region that belongs to the Guhyakas. He who cultivates self with the aid of self, who frees himself from the influence of all pairs of opposites (such as heat and cold, joy and sorrow, etc), who is freed from every kind of attachment, and who mentally observes for two and ten years such a course of conduct after Diksha, attains to Heaven and enjoys every happiness with the deities as his companions. He who lives in entire dependence upon his own self and observes for two and ten years the duties that attach to Diksha and finally casts off his body on the fire as an oblation to the deities, attains to the regions of Brahman and is held in high respect there. That regenerate man, O goddess, who having properly gone through the Diksha keeps his senses under subjugation, and placing his Self on Self frees himself from the sense of meum, desirous of achieving righteousness, and sets out, without a covering for his body, after the due observance of the duties of Diksha for two and ten years and after having placed his sacred fire on a tree, and walks along the path that belongs to heroes and lies down (when need for lying down comes) in the attitude of heroes, and conducts himself always after the manner of heroes, certainly attains to the end that is reserved for heroes.[] Such a man repairs to the eternal region of Sakra where he becomes crowned with the fruition of all his wishes and where he sports in joy, his person decked with garlands of celestial flowers and celestial perfumes. Indeed, that righteous souled person lives happily in Heaven, with the deities as his companions. The hero, observant of the practices of heroes and devoted to that Yoga which belongs to heroes, living in the practice of Goodness, having renounced everything, having undergone the Diksha and subjugated his senses, and observing purity of both body and mind, is sure to attain to that path which is reserved for heroes. Eternal regions of happiness are his. Riding on a car that moves at the will of the rider, he roves through all those happy regions as he likes. Indeed, dwelling in the region of Sakra, that blessed person always sports in joy, freed from every calamity.'"