Shiva Purana
इत्युक्तस्तं नमस्कृत्य वासुदेवो मुनीश्वरम् ॥ मनसा संस्मरञ्शंभुं केशवो द्वारकां ययौ ॥ ५१ ॥
Thus permitted by him, Keśava the son of Vasudeva made obeisance to the sage and returned to Dvārakā mentally remembering Śiva.
english translation
ityuktastaM namaskRtya vAsudevo munIzvaram ॥ manasA saMsmaraJzaMbhuM kezavo dvArakAM yayau ॥ 51 ॥
hk transliteration by Sanscript