The eight things "unclean" to monks, of which there are different groups. 0ne group is - to keep gold, silver, male slaves, female slaves, cattle, stores, or to trade or farm. Another is - to own cultivated lands, to farm, keep supplies of grain and silk, servants, animals or birds, money, cushions and pans, and furniture and gilded beds.

A Dictionary of Chinese Buddhist Terms, William Edward Soothill and Lewis Hodous

八種比丘不可積蓄的不淨物，即金、銀、奴婢、牛羊、倉庫、販毒、耕種。

陳義孝編, 竺摩法師鑑定, 《佛學常見辭彙》

（名數）比丘有不可畜積之八種不淨物諸師之解不一。涅槃經六曰：「八種不淨之物。」同疏六曰：「八不淨者：畜金、銀、奴、婢、牛羊、倉庫、販賣、耕種，自作食不受而啖，汙道汙威儀，損妨處多，故名不淨。」佛祖統紀四曰：「案律云：八不淨者：一田園、二種植、三穀帛、四畜人僕、五養禽獸、六錢寶、七褥釜、八象金飾床及諸重物。」

丁福保《佛學大辭典》