Shiva Purana
यतिनाथाह्वयस्सोपि हंसरूपोऽभवच्छिवः ॥ विवाहं कारयामास दमयन्त्या नलेन वै ॥ ३५ ॥
Śiva in the form of Yatinātha was born as a swan. He managed the marriage of Damayantī with Nala.
english translation
yatinAthAhvayassopi haMsarUpo'bhavacchivaH ॥ vivAhaM kArayAmAsa damayantyA nalena vai ॥ 35 ॥
hk transliteration by Sanscript