Mahabharata Adi Parva Chapter 100:2

Mahabharata Adi Parva Chapter 100:2 "And Santanu's son, the Vasu born of Ganga, named Devavrata resembled Santanu himself in personal beauty, in habits and behaviour, and in learning. And in all branches of knowledge worldly or spiritual his skill was very great. His strength and energy were extraordinary. He became a mighty car-warrior. In fact he was a great king. "One day, while pursuing along the banks of the Ganges a deer that he had struck with his arrow, king Santanu observed that the river had become shallow. On observing this, that bull among men, viz., Santanu, began to reflect upon this strange phenomenon. He mentally asked why that first of rivers ran out so quickly as before. And while seeking for a cause, the illustrious monarch beheld that a youth of great comeliness, well-built and amiable person, like Indra himself, had, by his keen celestial weapon, checked the flow of the river. And the king, beholding this extraordinary feat of the river Ganga having been checked in her course near where that youth stood, became very much surprised. This youth was no other than Santanu's son himself. But as Santanu had seen his son only once a few moments after his birth, he had not sufficient recollection to identify that infant with the youth before his eyes. The youth, however, seeing his father, knew him at once, but instead of disclosing himself, he clouded the king's perception by his celestial powers of illusion and disappeared in his very sight. "King Santanu, wondering much at what he saw and imagining the youth to be his own son then addressed Ganga and said, 'Show me that child.' Ganga thus addressed, assuming a beautiful form, and holding the boy decked with ornaments in her right arm, showed him to Santanu. And Santanu did not recognise that beautiful female bedecked with ornaments and attired in fine robes of white, although he had known her before. And Ganga said, 'O tiger among men, that eighth son whom thou hadst some time before begat upon me is this. Know that this excellent child is conversant with all weapons, O monarch, take him now. I have reared him with care. And go home, O tiger among men, taking him with thee. Endued with superior intelligence, he has studied with Vasishtha the entire Vedas with their branches. Skilled in all weapons and a mighty bowman, he is like Indra in battle. And, O Bharata, both the gods and the Asuras look upon him with favour. Whatever branches of knowledge are known to Usanas, this one knoweth completely. And so is he the master of all those Sastras that the son of Angiras (Vrihaspati) adored by the gods and the Asuras, knoweth. And all the weapons known to the powerful and invincible Rama, the son of Jamadagni are known to this thy illustrious son of mighty arms. O king of superior courage, take this thy own heroic child given unto thee by me. He is a mighty bowman and conversant with the interpretation of all treatises on the duties of a king.' Thus commanded by Ganga, Santanu took his child resembling the Sun himself in glory and returned to his capital.