In days of yore the royal sage Nriga became changed into a lizard. He had made gifts of kine into the Brahmanas at his great sacrifice, but this did not help him.
गोप्रदानेन मिथ्या च ब्राह्मणेभ्यो महामखे। पुरा नृगश्च राजर्षिः कृकलासत्वमागतः॥