O King, when that uncontrollable poison was forcefully spreading up and down in all directions, all the demigods, along with the Lord Himself, approached Lord Śiva [Sadāśiva]. Feeling unsheltered and very much afraid, they sought shelter of him.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
तदुग्रवेगं दिशि दिश्युपर्यधो विसर्पदुत्सर्पदसह्यमप्रति । भीताः प्रजा दुद्रुवुरङ्ग सेश्वरा अरक्ष्यमाणाः शरणं सदाशिवम्
tadugravegaṃ diśi diśyuparyadho visarpadutsarpadasahyamaprati | bhītāḥ prajā dudruvuraṅga seśvarā arakṣyamāṇāḥ śaraṇaṃ sadāśivam
SB 8.7.19