Skandapurana 16.131.9

16.131.9

yasyākhilaṃ jagadidaṃ vaśavarti nityaṃ yo'ṣṭābhireva tanubhirbhuvanāni bhuṃkte ..
yatkāraṇaṃ paramakāraṇakāraṇānāṃ taṃ śaṃkaraṃ śaraṇadaṃ śaraṇaṃ vrajāmi ..9..

To whose control this entire universe is ever subject, who enjoys the worlds through his eight bodies alone, / who is the cause of supreme causes—to that Śaṃkara, granter of refuge, I go for refuge. // 9