TL;DR: Madd is holding a long vowel for additional counts. Five categories — Asli, Muttasil, Munfasil, ‘Aarid lil-sukoon, and Laazim — dictate durations of 2, 4, 5, or 6 counts. Wrong madd length is the most audible tajweed error.
Answer first
When a long vowel (ا, و, ي) follows a matching harakah, the vowel is held. How long you hold it depends on what comes after. The five madd categories cover every case in the Quran.
The rule in a table
| Type | Trigger | Duration |
|---|---|---|
| Asli (natural) | Default long vowel, nothing special follows | 2 counts |
| Muttasil (connected) | Hamza follows within the same word | 4–5 counts (required) |
| Munfasil (separated) | Hamza follows in the next word | 2–5 counts (permissible) |
| ‘Aarid lil-sukoon | Stopping on a final vowel at a pause | 2, 4, or 6 counts |
| Laazim (required) | Sukoon or shaddah follows a madd letter | Strictly 6 counts |
Quranic examples
- Asli: قَالَ (throughout Quran) — 2-count hold on the ا.
- Muttasil: جَاءَ (Al-Baqarah 2:87) — 4–5 count madd — hamza inside word.
- Munfasil: يَا أَيُّهَا (Al-Baqarah 2:21) — 2–5 count madd — hamza starts next word.
- ‘Aarid lil-sukoon: الرَّحِيمِ (at stop) (Al-Fatihah 1:3) — 2, 4, or 6 count on stop.
- Laazim: الضَّالِّينَ (Al-Fatihah 1:7) — 6 counts — shaddah after ا.
Why this rule matters
Madd errors are the #1 signal that someone memorized fast without tajweed. A 2-count laazim madd (should be 6) makes a verse sound childlike; a 6-count asli madd (should be 2) sounds affected. The durations feel arbitrary but are actually signals of meaning and rhythm built into the revelation.
Common mistakes by level
- Beginner: Holding every long vowel the same duration. Fix: Count internally: 1 for asli, 2–3 for muttasil/munfasil, 6 for laazim. Use your finger to track counts.
- Intermediate: Inconsistency within the same recitation. Fix: Pick a duration for munfasil (usually 4 counts) and stay consistent throughout.
- Advanced: Inaccurate ‘aarid lil-sukoon at chapter ends. Fix: The 6-count stop at the end of Al-Fatihah (ad-daalleen) requires full breath; don’t cheat to save time.
Drill plan (one week)
- Day 1: Memorize the five categories with one example each.
- Day 2–3: Read Al-Fatihah holding strict counts. Record.
- Day 4: Surah Ad-Duha — rich in madd. Apply each rule explicitly.
- Day 5–6: Listen to Al-Husary recite Al-Fatihah three times. Count his durations.
- Day 7: Apply to one full juz you know. Use the verifier.
In the app
HafizPrime’s word-level verifier flags every decision for this rule that you miss, showing which sub-rule applied and what you did instead. The verifier runs on-device — no recitation audio leaves your phone. See how accuracy is calibrated.