Charak Samhita
सन्धारणादत्यशनादजीर्णाध्यशनात्तथा। वर्चोवाहीनि दुष्यन्ति दुर्बलाग्नेः कृशस्य च ॥२१॥
Purishavaha srotas are afflicted due to suppression of urge of defecation, over eating, eating during indigestion, especially in persons with poor digestion and who are emaciated.
english translation
sandhAraNAdatyazanAdajIrNAdhyazanAttathA। varcovAhIni duSyanti durbalAgneH kRzasya ca ॥21॥
hk transliteration by Sanscript