Devibhagavatapurana 7.10.39

7.10.39

rājovāca - pativrate rakṣa putraṃ dāsyāmi bharaṇaṃ tava |
tāvadeva patiste'tra vanāccaivāgamiṣyati ||

Satyavrata said:-- “O Chaste One! Save your children. I will bring to you your articles of food from the forest till your husband does not come here. Daily I will fasten some food on a tree close by your Âs'rama. This I speak truly.” The wife of Vis'vâmitra, hearing these words of the prince, freed the child of the fastening and took him to her Âs'rama. The child was named afterwards as Gâlaba, due to his being fastened by the neck. He became a great Risi afterwards. The Vis'vâmitra's wife then felt great pleasure in her home, surrounded by her children. Filled with regard, and mercy, Satyavrata duly performed his task and provided daily the family of Vis'vâmitra with their food. He used to hunt wild boars, deer, buffaloes, etc., and used to take their flesh to the place where used to dwell the wife of Vis'vâmitra and the children and tie that up to an adjoining tree. The Risi's wife used to give those to her children. Thus getting excellent food, she felt very happy. Now when the King Aruna went for tapasyâ to the forest, the Muni Vas'istha carefully guarded the Ayodhyâ city, and the palace and the household. Satyavrata, too, used to sustain his livelihood daily by hunting, accordig to his father's order; and abiding by Dharma, lived in the forest outside the city. Satyavrata cherished always in his heart, for some cause, a feeling of anger towards Vas'istha. When his father banished his religious son, Vas'istha did not prevent his father. This is the cause of Satyavrata's anger. Marriage does not become valid until seven footsteps are trodden (a ceremony); so the stealing away of a girl within that period is not equivalent to stealing away a Brâhmin's wife. The virtuous Vas'istha knew that; yet he did not prevent the King. One day the prince did not find anything for hunting; he saw in the forest the cow of Vas'istha giving milk. Very much distressed by hunger, the King killed the cow like a dacoit, partly out of anger and partly out of delusion. He fastened part of the flesh to that tree for the wife of Vis'vâmitra and the remainder he ate himself. O One of good vows! The Vis'vâmitra's wife did not know that to be beef and thought it to be deer's and so fed her sons with that. Now when Vas'istha came to know that his cow had been killed, he was inflamed with anger and spoke to Satyavrata “O Vicious One! What a heinous crime have you committed, like a Pis'âcha, by killing the cow? For the killing of the cow, the stealing of a Brâhmin's wife and the fiery anger of your father, for these three crimes, let there come out on your head three S'ankus or three marks of leprosy as the signs for your crimes. From this day you will be widely known by the name of Tris'anku and you will show your Pis'âcha form to all the beings.”