A complete guide to Al-Quddus — Name 4 of the 99 Names of Allah. Covers the root ق-د-س in all its forms (Jerusalem, Ruh al-Qudus, Bayt al-Maqdis), the fu’ul morphological form (the most intensive purity pattern in Arabic), the angels’ dhikr (Muslim 487), the Tanzih doctrine, and how Subhanallah is the verbal expression of this Name.
The Source Entity — Al-Quddus in the Quran
Quran 59:23 — Al-Quddus in the chain of divine Names:
هُوَ ٱللَّهُ ٱلَّذِى لَآ إِلَٰهَ إِلَّا هُوَ ٱلْمَلِكُ ٱلْقُدُّوسُ ٱلسَّلَٰمُ ٱلْمُؤْمِنُ ٱلْمُهَيْمِنُ
“He is Allah — there is no god but He — Al-Malik, Al-Quddus, As-Salam, Al-Mu’min, Al-Muhaymin…”
Quran 62:1 — All creation glorifies Al-Quddus:
يُسَبِّحُ لِلَّهِ مَا فِى ٱلسَّمَٰوَٰتِ وَمَا فِى ٱلْأَرْضِ ٱلْمَلِكِ ٱلْقُدُّوسِ ٱلْعَزِيزِ ٱلْحَكِيمِ
“Whatever is in the heavens and whatever is on the earth glorifies Allah — Al-Malik, Al-Quddus, Al-Aziz, Al-Hakim.”
Both appearances of Al-Quddus in the Quran are in the context of Tasbih (glorification). This is not coincidental — Al-Quddus is the Name that generates Tasbih. Everything in creation glorifies Allah because He is Al-Quddus — perfectly pure, perfectly holy, completely free from every deficiency. The mountains, the rivers, the birds, the atoms — all are engaged in continuous Tasbih of Al-Quddus (Quran 17:44: “There is not a thing except that it glorifies His praise — but you do not understand their glorification”).
Arabic Root Analysis — ق-د-س
| Arabic | Transliteration | Meaning | Context |
|---|---|---|---|
| ق-د-س | q-d-s | Purity, holiness, sanctity | The foundational root — describes absolute freedom from impurity, deficiency, or anything unworthy |
| قُدُّوس | Quddūs | The Absolutely Holy (Name of Allah) | فُعُّول pattern — the most intensive form in Arabic morphology. Absolute, total, supreme holiness. |
| قُدْس | Quds | Holiness, sanctity — also: Jerusalem | Al-Quds (القُدْس) = Jerusalem — named for its sanctity as the city of prophets. The Holy City’s name is directly from this divine Name. |
| بَيْت الْمَقْدِس | Bayt al-Maqdis | The Sacred House — Jerusalem / Al-Aqsa | Maqdis = the place of Taqdis (sanctification). The mosque is named as the sanctified place — directly connected to Al-Quddus. Quran 17:1: “the furthest mosque whose surroundings We have blessed.” |
| رُوح الْقُدُس | Rūḥ al-Qudus | The Holy Spirit — Jibril AS | Quran 16:102: “Say: The Holy Spirit (Ruh al-Qudus) has brought it down from your Lord with truth.” Jibril AS is called the Holy Spirit because he carries and transmits the divine holiness of revelation. |
| تَقْدِيس | Taqdīs | Sanctification — declaring something holy | The angels said to Allah when man was created: “We glorify Your praise and we sanctify You (nuqaddisu lak)” — Quran 2:30. The angels perform Taqdis — declaring Allah’s absolute purity. |
| أَرْض مُقَدَّسَة | Arḍ Muqaddasah | The Holy Land — Palestine/Sham | Quran 5:21 — Musa AS tells his people: “Enter the holy land (al-arḍ al-muqaddasah) that Allah has assigned to you.” The land’s holiness is derived from divine Quds. |
The Morphological Secret — فُعُّول (Fu’ūl): The Most Intensive Form
Al-Quddus uses the pattern فُعُّول (fu’ūl) — one of the rarest and most intensive morphological patterns in the Arabic language. It appears in only a handful of words, all describing something at its absolute extreme:
Notably, the angels pair Subbooh and Quddoos in their dhikr — both in the fu’ul form. Ibn al-Qayyim: “The angels chose the most intensive forms of both names because they are describing something whose reality exceeds all description — they reach for the most powerful words the Arabic language offers and still acknowledge they fall short.”
The Angels’ Dhikr — Muslim 487
Muslim 487 (Sahih) — What the Prophet ﷺ said in his Ruku’ and Sujood:
سُبُّوحٌ قُدُّوسٌ رَبُّ الْمَلاَئِكَةِ وَالرُّوحِ
“Subboohun Quddoosun Rabbul-malaa’ikati war-ruh — Absolutely Glorified, Absolutely Pure — Lord of the angels and the Spirit (Jibril).”
This is one of the rare dhikr narrated with both the Subbooh and Quddoos forms — the Prophet ﷺ recited it in the most humble position in Salah (Ruku’ and Sujood), matching the most intense declaration of divine purity with the physical position of maximum human humility.
Al-Quddus and Tanzih — The Aqeedah Foundation
Tanzih (تَنْزِيه) — declaring Allah free from all imperfection — is one of the two pillars of Islamic theology concerning the divine Names and Attributes (alongside Ithbat — affirming the attributes positively). Al-Quddus is the Name most directly tied to Tanzih.
Subhanallah — The Verbal Expression of Al-Quddus
Every time a Muslim says Subhanallah (سُبْحَانَ اللَّه), they are verbally affirming the attribute of Al-Quddus. The word Subhan comes from the root س-ب-ح — to swim/glide freely without impediment — and by extension: to declare someone free from all constraints and deficiencies.
The Weight of Subhanallah — Bukhari 6682 (Sahih):
The Prophet ﷺ said: “Two phrases are beloved to Ar-Rahman, light on the tongue, and heavy on the scale: Subhanallah wa bihamdihi — Subhanallahil-‘Adheem.”
The most beloved dhikr to Ar-Rahman is the declaration of Al-Quddus (Subhan). Every Subhanallah is an act of Taqdis — a recognition that Allah is Quddus. This is why it is the heaviest phrase on the scale despite being light on the tongue.
Al-Quddus in the Witr Dua — After the 3rd Rak’ah
Nasa’i 1699 (Sahih) — After Witr Salah:
سُبْحَانَ الْمَلِكِ الْقُدُّوسِ
“Subhanal-Malikil-Quddoos — Glory be to the King, the Absolutely Pure.”
Recited three times after Witr — the third time elongated and with raised voice. Al-Malik (sovereignty) paired with Al-Quddus (purity) — the King whose authority is absolutely pure, uncontaminated by injustice, self-interest, or limitation.
How to Make Dua with Al-Quddus
- “Ya Quddus, quddis qalbi” — O Most Holy, purify my heart. Invoking Al-Quddus for spiritual purification of the heart from sin, heedlessness, and impurity.
- In Ruku’ and Sujood — “Subboohun Quddoosun Rabbul-malaa’ikati war-ruh” (Muslim 487) — the most authentic dhikr of Al-Quddus in Salah.
- After Witr — “Subhanal-Malikil-Quddoos” three times — Sunnah confirmed practice (Nasa’i 1699).
- When troubled by doubts about Allah — Al-Quddus reminds: Allah is utterly free from the deficiencies human minds project onto Him. Waswas (whisperings) about divine nature are answered by Taqdis — declaring Him absolutely pure from what doesn’t befit Him.
What Al-Quddus Teaches the Believer
SADAQAH JARIYAH
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Mohammed Basheer is the founder of Sukoonly.com, an Islamic blog focused on duas, prophetic healing, and Qur’anic wisdom. He writes with sincerity and spiritual depth for seekers around the world.