Shiva Purana
यदा नैव हरस्तुष्टो बभूव हरये द्विजाः ॥ तदा स भगवान्विष्णुर्विचारे तत्परोऽभवत्॥ १६॥
O brahmins, when Śiva was not pleased with Viṣṇu, the latter began to think anxiously.
english translation
yadA naiva harastuSTo babhUva haraye dvijAH ॥ tadA sa bhagavAnviSNurvicAre tatparo'bhavat॥ 16॥
hk transliteration by Sanscript