Ramayana
आदिप्रभृति गेयं स्यान्न चावज्ञाय पार्थिवम् । पिता हि सर्वभूतानां राजा भविति धर्मतः ॥ 7-93-15 ॥
It should be sung from the very beginning, and the king should not be slighted; for the king is by sacred law the father of all beings.
english translation