从语言上讲,"Daleel"(دليل)的意思是证明、指示或证据。作为一个术语,"Daleel"指的是某一思想、概念或裁决的来源或依据。任何法律或裁决都必须有其Daleel,它可以来自《古兰经》、《圣训》,或是《古兰经》和《圣训》指示我们采用的某种来源。这些来源将在本书后面讨论。凡是出自《古兰经》或《圣训》文本的任何裁决,都被视为Daleel。例如,《古兰经》中说:

Linguistically, Daleel means a proof, indication, or evidence. As a term, Daleel means the source or evidence for a thought, concept, or a ruling. Any law or ruling must have a Daleel, which can be from Qur‟an, Sunnah, or a source, which Qur‟an and Sunnah directed us to adopt. These sources will be discussed later in the book. Any ruling from the text of either the Qur‟an or Sunnah is considered a Daleel. For example, the Qur‟an states:

“你们中当有一班人，号召人们行善，劝人遵从正道，禁止人们作恶。”（《古兰经》阿al-Imran：104）

“Let there arise out of you a group of people inviting to all that is good (Islam) and enjoining what is right and forbidding what is wrong.” (TMQ Al-Imran: 104)

这节经文被视为设立一个伊斯兰呼吁团体（政党或群体）、号召伊斯兰、命人行善、禁人作恶之义务的证据。

This Ayah is considered a Daleel for the obligation of establishing a Hizb (party or group) calling for Islam and enjoining what is M‟aruf (good) and forbidding what is Munkar (bad).

一个来自圣训的证据（Daleel）的例子，是禁止呼吁民族主义。先知ﷺ关于各种形式的“Asabiyah”（民族主义、种族主义、部落主义）说道：

An example of a Daleel from the Sunnah is the prohibition to the call for nationalism. The Prophet (saw) said about all types of „Asabiyah (nationalism, racism, tribalism):

“放下它吧，它已经腐烂了。”（布哈里与穆斯林）

“Leave it, it is rotten.” (Bukhari & Muslim)