Ramayana
अकुतूहलभावेन प्रीतो ऽस्मि तव पार्थिव । धनदस्यानुजं यो मां नावगच्छसि रावणम् ॥ 7-18-9 ॥
O king, I am pleased with your unconcerned manner — you who do not recognize me, Ravana, as the younger brother of Kubera, the giver of wealth.
english translation