瑜伽論記 3.70

3.70

Furthermore, when that treatise explains black-black karma, referring to unwholesome karma, its intention takes the purely unwholesome karma initiated by one who has severed wholesome roots, as well as the fundamental and expedient purely unwholesome karma initiated by one who has not severed wholesome roots, to be black-black. If unwholesome karma is mixed with wholesome karma, whether serving as the fundamental or as the expedient, such unwholesome [karma] is combined with that wholesome [karma] to establish black-white-black-white karma.