Mbh 1.34.5

“And Garuda in joy then spake unto all the snakes, ‘Here have I brought the Amrita. Let me place it on some Kusa grass. O ye snakes, sitting here, drink of it after ye have performed your ablutions and religious rites. As said by you, let my mother become, from this day, free, for I have accomplished your bidding.’ The snakes having said unto Garuda, ‘Be it so,’ then went to perform their ablutions. Meanwhile, Sakra taking up the Amrita, wended back to heaven. The snakes after performing their ablutions, their daily devotions, and other sacred rites, returned in joy, desirous of drinking the Amrita. They saw that the bed of kusa grass whereon the Amrita had been placed was empty, the Amrita itself having been taken away by a counter-act of deception. And they began to lick with their tongues the kusa grass, as the Amrita had been placed thereon. And the tongues of the snakes by that act became divided in twain. And the kusa grass, too, from the contact with Amrita, became sacred thenceforth. Thus did the illustrious Garuda bring Amrita (from the heavens) for the snakes, and thus were the tongues of snakes divided by what Garuda did.