Ramayana
पैङ्गल्यं यदवाप्तं हि देव्या रूपनिरीक्षणात् । प्रीतो ऽस्मि तव धर्मज्ञ तपसा नेन सुव्रत ॥ 7-13-27 ॥
"Because of the tawny hue you acquired from gazing upon the form of the Goddess — O knower of dharma, O you of excellent vows, I am pleased with you on account of this austerity."
english translation