Mbh 9.36.3c

He then mentally uttered the Richs, the Yayushes and the Samans (that were necessary for the performance of a sacrifice). The pebbles (lying at the bottom of the well) Trita converted into grains of sugar (in imagination). He then, O king, (mentally) performed his ablutions. He conceived the water (he had imagined) to be clarified butter. He allotted to the celestials their respective shares (of those sacrificial offerings). Having next (mentally) drunk Soma, he began to utter a loud noise. Those sounds, O king, first uttered by the sacrificing Rishi, penetrated into heaven, and Trita completed that sacrifice after the manner laid down by utterers of Brahma. During the progress of that sacrifice of the high-souled Trita, the whole region of the celestials became agitated. None knew, however, the cause. Brihaspati (the preceptor of the gods) heard that loud noise (made by Trita). The priests of the celestials said unto the latter, 'Trita is performing a sacrifice. We must go there, ye gods! Endued with great ascetic merit, if angry, he is competent to create other gods!' Hearing these words of Brihaspati, all the gods, united together, repaired to that spot where the sacrifice of Trita was going on. Having proceeded to that spot, the gods beheld the high-souled Trita installed in the performance of his sacrifice. Beholding that high-souled one resplendent with beauty, the gods addressed him, saying, 'We have come hither for our shares (in thy offerings)!' The Rishi said unto them, 'Behold me, ye denizens of heaven, fallen into this terrible well, almost deprived of my senses!' Then, Trita, O monarch, duly gave unto them their shares with proper mantras. The gods took them and became very glad. Having duly obtained their allotted shares, the denizens of heaven, gratified with him, gave him such boons as he desired. The boon, however, that he solicited was that the gods should relieve him from his distressful situation (in the well).