Mahabharata 3.135.26

3.135.26

aśakyo'rthaḥ samārabdho naitadbuddhikṛtaṃ tava |
pratibhāsyanti vai vedāstava caiva pituśca te || 26 ||

"Lomasa said, 'O son of Bharata, having said this, Sakra went away, and Yavakri of immeasurable energy, once more directed his attention to asceticism. O king, we have heard that carrying on severe austerities he again greatly agitated Indra. And the god Indra, slayer of Vala, again came unto that great sage, who was engaged in austere penances; and forbade him, saying, Thou art striving with the object that Vedic lore may be manifest unto thee as well as unto thy father; but thy exertions can never be successful, nor is this act of thine well-advised.' Yavakri said, 'O lord of the celestials, if thou wilt not do for me what I want, I shall, observing stricter vows, practise still severer penances. O lord of celestials! know that if thou do not fulfil all my desires, I shall then cut off my limbs and offer them as a sacrifice into a blazing fire.'