Mahabharata Anushasna Parva Chapter 106:2

Mahabharata Anushasna Parva (Dana Dharma Parva) Chapter 106:2 He who performs sacrifices for adoring the deities on the fifth and sixth days of the moon, transcends all the members of his family and succeeds in feeding a large number of Brahmanas. He who observes fasts on the eighth and the fourteenth days of the dark fortnight, becomes freed from maladies of every kind and possessed of great energy. The man who abstains from one meal every day throughout the month called Margasirsha, should, with reverence and devotion, feed a number of Brahmanas. By so doing he becomes freed from all his sins. Such a man becomes endued with prosperity, and all kinds of grain become his. He becomes endued with energy. In fact, such a person reaps an abundance of harvest from his fields, acquires great wealth and much corn. That man, O son of Kunti, who passes the whole month of Pausha, abstaining every day from one of two meals, becomes endued with good fortune and agreeable features and great fame. He who passes the whole month of Magha, abstaining every day from one of the two meals, takes birth in a high family and attains to a position of eminence among his kinsmen. He who passes the whole month of Bhagadaivata, confining himself every day to only one meal becomes a favourite with women who, indeed, readily own his sway. He who passes the whole of the month of Chaitra, confining himself every day to one meal, takes birth in a high family and becomes rich in gold, gems, and pearls. The person, whether male or female, who passes the month of Vaisakha, confining himself or herself every day to one meal, and keeping his or her senses under control, succeeds in attaining to a position of eminence among kinsmen. The person who passes the month of Jyaishtha confining himself every day to one meal a day, succeeds in attaining to a position of eminence and great wealth. If a woman, she reaps the same reward. He who passes the month of Ashadha confining himself to one meal a day and with senses steadily concentrated upon his duties, becomes possessed of much corn, great wealth, and a large progeny. He who passes the month of Sravana, confining himself to one meal a day, receives the honours of Abhisheka wherever he may happen to reside, and attains to a position of eminence among kinsmen whom he supports. That man who confines himself to only one meal a day for the whole month of Proshthapada, becomes endued with great wealth and attains to swelling and durable affluence. The man who passes the month of Aswin, confining himself to one meal a day, becomes pure in soul and body, possessed of animals and vehicles in abundance, and a large progeny. He who passes the month of Kartika, confining himself to one meal every day, becomes possessed of heroism, many spouses, and great fame. I have now told thee, O chief of men what the fruits are that are obtained by men by observing fasts for the two and ten months in detail.