Shiva Purana
वारिशय्यागतो विष्णुः सुष्वापानाकुलः सुखम् ॥ यदृच्छया गतस्तत्र ब्रह्मा लोकपितामहः ॥ १८ ॥
Lord Viṣṇu came to the bed of water and fell asleep happily. Brahma the father of the worlds went there by chance.
english translation
vArizayyAgato viSNuH suSvApAnAkulaH sukham ॥ yadRcchayA gatastatra brahmA lokapitAmahaH ॥ 18 ॥
hk transliteration by Sanscript