Manava Dharmashastra 4.215

4.215

karmāro'yaskaraḥ | niṣādo daśame vakṣyate | raṅgāvatarako naṭagāyanakebhyo'nyo mallādiḥ | athavā pratiraṅgamapatiṣṭhate kutūhalī | veṇuḥ vāvitrajīvitaḥ | śastravikrayī kṛtasya khaṅgāderakṛtasya vā'yaso vikretā |

‘Ungrateful person,’—he who nullities the good that has been done to him; on the contrary, proceeds to do harm to his helper, and not to do a good turn to him, even though capable of doing so.—(214)