Shiva Purana
समाप्तमिव निर्वाणं सर्वज्ञमिव संगतम् ॥ दृष्ट्वा प्रहृष्टवदनो ब्रह्मपुत्रः सहर्षिभिः ॥ ३३ ॥
It was as if Nirvana had been completed and it was as if it had attained the omniscient. Seeing this the son of Brahma with a cheerful face along with the sages.
english translation
samAptamiva nirvANaM sarvajJamiva saMgatam ॥ dRSTvA prahRSTavadano brahmaputraH saharSibhiH ॥ 33 ॥
hk transliteration by Sanscript