Ramayana
अप्रकम्प्यो यता स्थाणुश्चन्द्रे सौम्यत्वमीदृशम् । नेदृशाः पार्थिवाः पूर्वं भवितारो नराधिप ॥ 7-37-7 ॥
"You are unshakable like Sthanu, and such gentleness is yours as is in the moon; there have been no such kings before, O lord of men."
english translation