Matsya Purana 48.80

48.80

tatastaṃ dīrghatamasaṃ surabhirvākyamabravīt.
vicārya yasmād godharmaṃ pramāṇante kṛtaṃ vibho.. 48.80 ..

Then the divine cow Surabhi said to Dîraghatamâ:—“As you followed the cattle law deliberately and took it to be superior to all, O, sinless! I am very much pleased with you and hereby remove your blindness by smelling you. The sin of Bṛihaspati is inherent in you. I however relieve you of your old age, death and loss of vision, by merely smelling you.”—80-82.