Charak Samhita
अपस्वरं भाषमाणं प्राप्तं मरणमात्मनः। श्रोतारं चाप्यशब्दस्य दूरतः परिवर्जयेत् ॥१४॥
॥ Signs of impending death and ethics in critical care॥ he man speaking irrelevantly about death or patient suffering from auditory hallucinations should not be treated.
english translation
apasvaraM bhASamANaM prAptaM maraNamAtmanaH। zrotAraM cApyazabdasya dUrataH parivarjayet ॥14॥
hk transliteration by Sanscript