瑜伽論記 2.298

2.298

如事於王如是，因諸言說商賈等業等者，先造善業應獲富財，誑語諂逗遂獲珍寶，二業俱熟，是名雜因。如是由先獲財善業，今者應熟，假現農業或假劫盜或假屠害便獲富樂名雜業。有雖商買等乃至屠害不獲財富者，先無善福可獲果故，如新所造引餘有業者，則是一切順現受業，養父母等乃至工巧業處現獲珍財，皆純現業。

Under "Just as in serving a king, so it is with karma caused by various speeches, commerce, and so forth": one who previously created wholesome karma ought to obtain wealth, but by lying and flattery one then obtains precious treasures; both karmas ripen together, and this is called a "mixed cause." In this way, by the wholesome karma of previously obtaining wealth, it ought to ripen now, but relying on present farming, or relying on robbery, or relying on butchery, one then obtains wealth and happiness—this is called "mixed karma." For those who, although engaging in commerce and so forth, down to butchery, do not obtain wealth: because there was no prior wholesome merit that could obtain a fruit. As for karma that, like newly created [karma], leads to other existences: these are all karmas experienced in the present life. Supporting parents and so forth, down to obtaining precious wealth in the present through craftsmanship—all are purely present karma.