We have heard that in days of yore when the god Tashtri came to the palace of king Nahusha, the latter, for satisfying the duties of hospitality, was on the point of slaying a cow in accordance with the true, ancient, and eternal injunction of the Vedas.
आम्नायमनुपश्यन् हि पुराणं शाश्वतं ध्रुवम्। नहुषः पूर्वमालेभे त्वष्टुर्गामिति नः श्रुतम्॥