Mbh 14.92.5

"Vaisampayana said, 'Thou didst not ask me before and, therefore, I did not tell thee. Hear as I tell thee who that mongoose was and why he could assume a human voice. In former times, the Rishi Jamadagni proposed to perform a Sraddha. His Homa cow came to him and the Rishi milked her himself. He then placed the milk in a vessel that was new, durable and pure. The deity Dharma, assuming the form of Anger, entered that vessel of milk. Indeed, Dharma was desirous of ascertaining what that foremost of Rishis would do when seeing some injury done to him. Having reflected thus, Dharma spoiled that milk. Knowing that the spoiler of his milk was Anger, the ascetic was not at all enraged with him. Anger, then, assuming the form of a Brahmana lady, showed himself to the Rishi. Indeed, Anger, finding that he had been conquered by that foremost one of Bhrigu's race, addressed him, saying, "O chief of Bhrigu's race, I have been conquered by thee. There is a saying among men that the Bhrigus are very wrathful. I now find that that saying is false, since I have been subdued by thee. Thou art possessed of a mighty soul. Thou art endued with forgiveness. I stand here today, owning thy sway. I fear thy penances, O righteous one. Do thou, O puissant Rishi, show me favour."