Shiva Purana
सूत उवाच ॥ श्रूयतां च ऋषिश्रेष्ठा हरीश्वरकथा शुभा ॥ यतस्सुदर्शनं लब्धं विष्णुना शंकरात्पुरा ॥ ४ ॥
Sūta said:— O great sages, may the auspicious story of Harīśvara be heard, how Sudarśana was acquired by Viṣṇu formerly from Śiva.
english translation
sUta uvAca ॥ zrUyatAM ca RSizreSThA harIzvarakathA zubhA ॥ yatassudarzanaM labdhaM viSNunA zaMkarAtpurA ॥ 4 ॥
hk transliteration by Sanscript