Bhagavatapurana 10.64.31

10.64.31

kṛṣṇaḥ parijanaṃ prāha bhagavān devakī-sutaḥ /
brahmaṇya-devo dharmātmā rājanyān anuśikṣayan //

31. To those around Him in order to teach those born of Kshtriya races. The glorious Devaki's son, Krishna, spoke thus. 32. 'Brahmins' property, ever so little it may be, when misappropriated, is not digestible even for Agni though he is so powerful: certainly then it is impossible for kings who are but conceited as being rulers.