釋氏要覽 3.86

3.86

希須為義。雜阿含經云。佛言。若眾生所有苦生彼一切。皆以欲為本○增一經云。欲生諸煩惱欲為生苦本○瑜伽云。諸煩惱中貪為最勝於貪中。欲貪為勝。生諸苦故。集論云。此法生時相不寂靜。由此生故身心相續不寂靜轉（由是義故束此二法名躁蓋取不安之義也）。

Its meaning is yearning and craving. The Saṃyuktāgama states: "The Buddha said: 'Whatever suffering arises for sentient beings, it all has desire as its root.'" The Ekottarikāgama states: "Desire generates all afflictions; desire is the root of the arising of suffering." The Yogācārabhūmi states: "Among all afflictions, greed is the most prominent; and within greed, craving of desire is the most prominent, because it generates all sufferings." The Abhidharmasamuccaya states: "When this phenomenon arises, its characteristic is not serene; because this arises, the continuum of body and mind proceeds in non-serenity." (By virtue of this meaning, these two phenomena are grouped together and termed 'restlessness', taking the sense of instability).