The Foxing lun， Buddha-nature Treatise， written in four fascicles. T 1610.31.787a-813a. Attributed to Vasubandhu 世亲， translated by Parama^rtha 真谛. This treatise discusses the theory of the Buddha-nature in great detail in sixteen chapters， from the four aspects of: （1） dependent arising; （2） breaking attachment; （3） manifestation of essence; and （4） discriminated aspects. In the course of explaining how it is that all sentient beings have the buddha-nature， the mistaken views of non-Buddhists 外道 and lesser-vehicle practitioners 小乘 are refuted. The author cites extensively from the S/ri^ma^la^-su^tra 胜鬘经， the Lotus Sutra 法华经 and the Yoga^ca^rabhu^mi-/sa^stra 瑜伽师地论.