Islamic knowledge glossary

Understand the terms before arguing about the rulings

A richer glossary for belief, hadith, fiqh, usul, Qur’an, worship and heart reform. Definitions are introductory; advanced usage is linked to the relevant science.

belief

Glossary terms

Tawhid

Worshipping Allah alone and affirming what belongs uniquely to Him.

belief

Rububiyyah

Affirming Allah’s lordship: creation, ownership and control.

belief

Uluhiyyah

Directing all acts of worship to Allah alone.

belief

Names & Attributes

Affirming what Allah and His Messenger ﷺ affirmed without distortion or resemblance.

belief

Iman

Faith that includes belief, speech and action, increasing and decreasing according to Sunni scholarship.

belief

Shirk

Associating partners with Allah in what belongs to Him.

belief

Kufr

Disbelief; its detailed rulings require careful scholarly treatment.

belief

Nifaq

Hypocrisy; scholars distinguish major hypocrisy from practical traits.

hadith

Sunnah

The guidance of the Prophet ﷺ in belief, worship, conduct and practice.

hadith

Bid‘ah

A religious innovation introduced into worship without valid evidence.

hadith

Hadith

A transmitted report concerning the Prophet ﷺ.

hadith

Isnad

The chain of transmitters through whom a report is conveyed.

hadith

Matn

The wording/content of a hadith report.

hadith

Sahih

A hadith grade meeting the accepted conditions of authenticity.

hadith

Hasan

A hadith accepted as reliable but below sahih in precision.

hadith

Da‘if

A hadith that does not meet the conditions of sahih or hasan.

hadith

‘Illah

A subtle defect that can affect a hadith despite an apparently sound chain.

hadith

Takhrij

Locating a hadith in its sources and discussing its chains/gradings.

fiqh

Fiqh

Understanding practical Islamic rulings from their detailed evidence.

fiqh

Fard

An obligatory act; details of terminology can vary by school.

fiqh

Wajib

An obligation; some jurists use it synonymously with fard, while others distinguish them.

fiqh

Mustahabb

A recommended act rewarded when done but not sinful when left.

fiqh

Makruh

A disliked act; detailed usage varies by juristic context.

fiqh

Mubah

An action that is permissible in itself.

fiqh

Shart

A condition required for validity or applicability but not itself part of the act.

fiqh

Rukn

An essential component within an act; omission affects validity.

fiqh

Fatwa

A scholarly answer explaining the ruling of a question or case.

usul

Ijtihad

Qualified scholarly effort to derive a ruling from evidence.

usul

Taqlid

Following a qualified scholar without independently deriving the evidence.

quran

Tafsir

Explanation of the meanings of the Qur’an according to reliable principles and sources.

quran

Tadabbur

Reflecting on Qur’anic meaning in a manner governed by sound interpretation.

worship

Dhikr

Remembrance of Allah through established words and acts.

worship

Du‘a

Calling upon Allah and asking Him for benefit, guidance and protection.

heart

Ikhlas

Directing worship sincerely to Allah alone.

heart

Tawbah

Returning to Allah by leaving sin, regretting it and resolving not to return.

worship

Ruqyah

Recitation and supplication for healing using permissible Qur’an and du‘a.

hadith

Mawdu‘

A fabricated report falsely attributed to the Prophet ﷺ.

hadith

Marfu‘

A report attributed to the Prophet ﷺ.

hadith

Mawquf

A report attributed to a Companion.

hadith

Maqtu‘

A report attributed to a Tabi‘i or later figure.