Skandapurana 5.136.10

5.136.10

tatastairmaṃtritaṃ sarvaireṣa nūnaṃ malimlucaḥ ..
saṃprāptaḥ pṛṣṭhato'smābhirmunirūpo babhūva ha .. 6.137.10 ..

Then they all conferred among themselves: “This is surely the thief! / Followed by us, he has assumed the form of a sage.”