舊曰緣緣。新曰所緣緣。所緣之緣也。四緣之一。心識對於境界時（如眼之於色），心識謂之能緣，境界謂之所緣。緣為攀緣，心識各自攀緣境界之義也。因而境界於心識為所緣之緣，即心識緣其所緣而起者，稱之為緣之緣或所緣之緣，與他之諸緣別異。見大乘義章三本，三藏法數十五。
The reasoning mind, or the mind reasoning, intelligence in contact with its object; later termed 所緣緣, i.e. 所緣 being the object and 緣 the mind; the relationship being like that of form or colour to the eye.
又名所緣緣，即所緣之緣，為四緣之一。
譯義未明，尚無明確資訊可供比對。(相關詞「緣緣集」)