导论：哈乃斐学派视角下的 Al-istihsaan（istihsān，istihsaan）与 al-qiyaas（qiyās，qiyaas）之对立
Introduction: The Opposition Of Al-istihsaan To Al-qiyaas In The View Of The Hanafiya
许多材料在使用“الاستحسان”这一术语时，哈乃斐派所指的含义是与“القياس”相对立的东西。因此他们会说：“القياس”要求“الحظر”（禁止），而“الاستحسان”要求“الإباحة”（允许）。他们把“الاستحسان”当作一个与同类的、以“القياس”为代表的“دليل شرعي”相对立的“دليل شرعي”。
A lot of what has come in terms of the utilisation of the wording Al-Istihsaan by the Hanafiyah is with the meaning of that which is in opposition to Al-Qiyaas. So they would say: Al-Qiyaas dictates Al-Hazhr (prohibition) but Al-Istihsaan dictates Ibaahah (permissibility). They have made Istihsaan a Daleel Shar’iy that is in opposition to a Daleel Shar’iy like it, represented in Al-Qiyaas.
有些学者说，在哈乃斐学派的观点中，"истихсан"（Al-Istihsaan，istihsān，即"认为更好"的推理）指的是任何与表面明显的类比（Qiyaas Azh-Zhaahir）相悖的证据（Daleel）。
Some of them said that in the Hanafiyah view Al-Istihsaan represents every Daleel that is contrary to the Qiyaas Azh-Zhaahir (what is apparent or evident).