Mbh 1.74.5b

What can be more ridiculous in the world than that those that are themselves wicked should represent the really honest as wicked? When even atheists are annoyed with those that have fallen off from truth and virtue and who are really like angry snakes of virulent poison, what shall I say of myself who am nurtured in faith? He that having begotten a son who is his own image, regardeth him not, never attaineth to the worlds he coveteth, and verily the gods destroy his good fortune and possessions. The Pitris have said that the son continueth the race and the line and is, therefore, the best of all religious acts. Therefore, none should abandon a son. Manu hath said that there are five kinds of sons; those begotten by one’s self upon his own wife, those obtained (as gift) from others, those purchased for a consideration, those reared with affection and those begotten upon other women than upon wedded wives. Sons support the religion and achievements of men, enhance their joys, and rescue deceased ancestors from hell. It behoveth thee not, therefore, O tiger among kings, to abandon a son who is such. Therefore, O lord of Earth, cherish thy own self, truth, and virtue by cherishing thy son. O lion among monarchs, it behoveth thee not to support this deceitfulness. The dedication of a tank is more meritorious than that of a hundred wells. A sacrifice again is more meritorious than the dedication of a tank. A son is more meritorious than a sacrifice. Truth is more meritorious than a hundred sons. A hundred horse-sacrifices had once been weighed against Truth, and Truth was found heavier than a hundred horse-sacrifices. O king, Truth, I ween, may be equal to the study of, the entire Vedas and ablutions in all holy places. There is no virtue equal to Truth: there is nothing superior to Truth. O king, Truth is God himself; Truth is the highest vow. Therefore, violate not thy pledge, O monarch! Let Truth and thee be even united.