俱舍論疏 6.67

6.67

On "The Śāstra says: ...acts as the homogeneous cause": this is the general explanation. "Similar phenomena act as the homogeneous cause for similar phenomena": according to this text of the Śāstra, if it acts as a cause for similar phenomena it is called a homogeneous cause, which is to say 'the cause of the homogeneous kind is called the homogeneous cause'. If it takes similar phenomena as cause it is called a homogeneous cause, which is to say 'that which is of the homogeneous kind is the cause, hence called the homogeneous cause'. The meaning accommodates both explanations, but neither reaches the earlier interpretation.