Shiva Purana

siva.sh/siva-purana/saturda-samhita/3/28

दत्त्वैवमतुलां शक्तिं ब्रह्मणो सा शिवा मुने ।। विवेश देहं शंभोर्हि शंभुश्चान्तर्दधे प्रभुः ।। २८ ।।

sanskrit

O sage, after giving the unequalled power to Brahmā, the goddess śivā entered the body of Śiva. And lord Śiva vanished from the scene.

english translation

dattvaivamatulAM zaktiM brahmaNo sA zivA mune || viveza dehaM zaMbhorhi zaMbhuzcAntardadhe prabhuH || 28 ||

hk transliteration by Sanscript