Sandarbhasūkti - part 18
147. Paṅkaprakṣālana-nyāya
Paṅka means marshy waters, prakṣālana means to cleanse. Why would one put their hands in the marsh and then cleanse it? It is better to not touch it at all. There is a verse in Pañcatantra:-
धर्मार्थं यस्य वित्तेहा वरं तस्य निरीहता ।
प्रक्षालनाद्धि पङ्कस्य दूरादस्पर्शनं वरम् ॥
