The Vishnu Purana
Chapters
The Vishnu Purana: Book I: Chapter XVII

According to the commands of his father, Prahláda was conducted by the Daityas back to the house of his Guru; where, assiduous in attendance on his preceptor, he constantly improved in wisdom. After a considerable time had elapsed, the sovereign of the Asuras sent for him again; and on his arrival in his presence, desired him to recite some poetical composition. Prahláda immediately began, "May he from whom matter and soul originate, from whom all that moves or is unconscious proceeds, he who is the cause of all this creation, Vishńu, be favourable unto us!" On hearing which, Hirańyakaśipu exclaimed, "Kill the wretch! he is not fit to live, who is a traitor to his friends, a burning brand to his own race!" and his attendants, obedient to his orders, snatched up their weapons, and rushed in crowds upon Prahláda, to destroy him. The prince calmly looked upon them, and said, "Daityas, as truly as Vishńu is present in your weapons and in my body, so truly shall those weapons fail to harm me:" and accordingly, although struck heavily and repeatedly by hundreds of the Daityas, the prince felt not the least pain, and his strength was ever renewed. His father then endeavoured to persuade him to refrain from glorifying his enemy, and promised him immunity if the would not be so foolish as to persevere but Prahláda replied, that he felt no fear as long as his immortal guardian against all dangers was present in his mind, the recollection of whom was alone sufficient to dissipate all the perils consequent upon birth or human infirmities.

Hirańyakaśipu, highly exasperated, commanded the serpents to fall upon his disobedient and insane son, and bite him to death with their envenomed fangs: and thereupon the great snakes Kuhaka, Takshaka,