jyotir vicca prakṛṣṭo 'pi candrārkagrahaṇādikam {vit---} / na bhavatyādiśabdānāṃ sādhutvaṃ jñātumarhati //
And even an expert in astronomy, though superior in [knowledge of] moon, sun, eclipses and such things, is not capable of determining the correctness of words like "bhavati" and others.