Ramayana
तच्च राज्यं नरेन्द्रस्य सभृत्यबलवाहनम् । सप्ताहाद्भस्मसाद्भूतं यथोक्तं ब्रह्मवादिना ॥ 7-81-17 ॥
And that kingdom of the king, with its servants, army, and mounts, was reduced to ashes within a week, just as the proclaimer of the sacred word had foretold.
english translation