nityamāptapraṇītaṃ vā vākyaṃ yaccāvadhāryate / śrotruccārayitṛbhyāṃ tan na manāgapi dūṣyate //
That sentence which is ascertained to be either eternal or uttered by a trustworthy person is not vitiated in the slightest by [any defects of] the hearer or speaker.