Charak Samhita
शुष्कं रूक्षं यथा काष्ठं जन्तुदग्धं विजर्जरम्। स्पृष्टमाशु विशीर्येत तथा वृद्धः स्त्रियो व्रजन् ॥४२॥
Dried, sapless piece of wood, eaten by worms and has become porous, gets broken immediately by a little pressure.
english translation
zuSkaM rUkSaM yathA kASThaM jantudagdhaM vijarjaram। spRSTamAzu vizIryeta tathA vRddhaH striyo vrajan ॥42॥
hk transliteration by Sanscript