Astanga Hrudaya
तथैवोपचयग्लानिरौक्ष्यस्नेहादि मृत्यवे । यस्य स्फुटेयुरङ्गुल्यो नाकृष्टा न स जीवति ॥ २२ ॥
Likewise, increase of strength or debility, dryness or moistness etc. appearing suddenly lead to death Fatal signs observed in fingers, sounds and respiration: He, whose fingers do not produce sound (knukles) when pulled, does not live;
english translation
tathaivopacayaglAniraukSyasnehAdi mRtyave । yasya sphuTeyuraGgulyo nAkRSTA na sa jIvati ॥ 22 ॥
hk transliteration by Sanscript