Mahabharata 1.89.40

1.89.40

bharatādhyuṣitaṃ pūrvaṃ so'dhyatiṣṭhatpurottamam |
punarbalibhṛtaścaiva cakre sarvamahīkṣitaḥ || 40 ||

[paragraph continues] And entertaining him with reverence, they represented everything unto that illustrious Rishi. And after he was seated on his seat, the king himself approached the Rishi and addressed him, saying, 'Be thou our priest, O illustrious one! We will endeavour to regain our kingdom.' And Vasishtha answered the Bharatas by saying, 'Om' (the sign of consent). It hath been heard by us that Vasishtha then installed the Bharata prince in the sovereignty of all the Kshatriyas on earth, making by virtue of his Mantras this descendant of Puru the veritable horns of the wild bull or the tusks of the wild elephants. And the king retook the capital that had been taken away from him and once more made all monarchs pay tribute to him. The powerful Samvarana, thus installed once more in the actual sovereignty of the whole earth, performed many sacrifices at which the presents to the Brahmanas were great.