Shiva Purana
गतगर्वोहरिश्चैव विचेता गतचेतनः॥ ज्ञातवान्परमेशानं विहरन्तं वृषात्मना॥ १३॥
When his pride fell off, Viṣṇu was dejected, and dispirited. He then realised that Śiva was sporting about in the form of a bull.
english translation
gatagarvoharizcaiva vicetA gatacetanaH॥ jJAtavAnparamezAnaM viharantaM vRSAtmanA॥ 13॥
hk transliteration by Sanscript