Ramayana
शून्या सा नगरी लङ्का त्यक्त्त्वैनां धनदो गतः । प्रविश्य तां सहास्माभिः स्वधर्मं प्रतिपालय ॥ 7-11-48 ॥
"That city of Lanka is empty; the lord of wealth (Kubera) has abandoned it and gone. Enter it along with us and uphold your own dharma."
english translation