Manusmriti
विक्रयाद् यो धनं किं चिद् गृह्णीयात् कुलसंनिधौ । क्रयेण स विशुद्धं हि न्यायतो लभते धनम् ॥ २०१ ॥
He who obtains a chattel in the market before a number (of witnesses), acquires that chattel with a clear legal title by purchase.
english translation
vikrayAd yo dhanaM kiM cid gRhNIyAt kulasaMnidhau । krayeNa sa vizuddhaM hi nyAyato labhate dhanam ॥ 201 ॥
hk transliteration by Sanscript