Mahabharata 3.93.12
सर्वासां सरितां चैव समुद्भेदो विशां पतेयत्र संनिहितो नित्यं महादेवः पिनाकधृक्
sarvāsāṃ saritāṃ caiva samudbhedo viśāṃ pateyatra saṃnihito nityaṃ mahādevaḥ pinākadhṛk
Our plain-language meaning of this verse is waiting for scholar review.