When the animal’s head was fixed on the body of King Dakṣa, Dakṣa was immediately brought to consciousness, and as he awakened from sleep, the King saw Lord Śiva standing before him.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
सन्धीयमाने शिरसि दक्षो रुद्राभिवीक्षितः । सद्यः सुप्त इवोत्तस्थौ ददृशे चाग्रतो मृडम्
sandhīyamāne śirasi dakṣo rudrābhivīkṣitaḥ | sadyaḥ supta ivottasthau dadṛśe cāgrato mṛḍam
SB 4.7.9