A practical reference comparing menstruation rulings across all four schools of Islamic jurisprudence.
The Islamic rulings on ḥayḍ (menstruation) directly determine when a Muslim woman should pray, fast, recite Qur'an, and be intimate with her spouse. While the core principles are shared across all schools — that a menstruating woman does not pray or fast — the four madhhabs differ meaningfully on the specifics.
These differences are not contradictions. They reflect the depth and richness of Islamic jurisprudence, where qualified scholars derived rulings from the same sources through rigorous scholarly methods. Following the rulings of your chosen madhhab ensures that your worship is consistent, grounded, and free from the anxiety of piecemeal searching.
Understanding these differences is especially important for women with irregular cycles, those approaching menopause, and new Muslims who are navigating these rulings for the first time.
The Ḥanafī school requires a minimum of 3 days (72 hours) of continuous bleeding for it to qualify as ḥayḍ. If bleeding lasts fewer than 3 days, it is classified as istiḥāḍah — and the woman must make up any prayers she missed during that time, as they were mistakenly left.
The maximum is 10 days . If bleeding continues beyond 10 days, the woman refers to her established cycle (ʿādah). Her known cycle length is counted as ḥayḍ, and the remaining days are istiḥāḍah. For a woman with no established pattern, the Ḥanafī school defaults to 10 days of ḥayḍ.
A minimum of 15 clean days must pass between two menstrual periods. Bleeding that begins before 15 days of purity have passed since the last period ended is treated as istiḥāḍah.
The Mālikī school is unique in that it does not impose a strict minimum duration for ḥayḍ — even a single gush of blood can qualify. However, the school places significant weight on the woman's established cycle pattern (ʿādah) and considers factors like blood colour, consistency, and timing.
The maximum duration is 15 days for a woman who has not yet established a pattern. For a woman with an established cycle, bleeding that exceeds her ʿādah by more than 3 days triggers a waiting period, after which the excess is classified as istiḥāḍah. The Mālikī approach is highly individualised, making it one of the most nuanced schools on this topic.
The Shāfiʿī school sets the minimum at 1 day (24 hours) and the maximum at 15 days . The most common duration is considered to be 6–7 days. A minimum of 15 clean days must separate two menstrual periods.
An important Shāfiʿī concept is the treatment of intermittent bleeding . If a woman experiences bleeding and then dryness and then bleeding again within a 15-day window, the clean days in between may be treated as part of the overall ḥayḍ episode (the concept of "joining" intermittent bleeding). This can be a source of confusion but provides flexibility for women with irregular patterns.
The Ḥanbalī school mirrors the Shāfiʿī in setting the minimum at 1 day and the maximum at 15 days . However, the minimum purity gap between periods is 13 days — slightly shorter than the 15 days required by the Ḥanafī and Shāfiʿī schools.
The Ḥanbalī school also gives weight to blood characteristics . Dark red or black blood is more likely to be ḥayḍ, while thin, pale, or yellowish blood may indicate istiḥāḍah. This provides an additional tool for women trying to distinguish between the two — particularly helpful for those with irregular cycles.
The treatment of brown (kudrah) and yellow (ṣufrah) discharge varies:
Noor Tracker is the only Islamic cycle tracker that applies madhhab-specific ḥayḍ limits automatically. When you select your madhhab in settings, Noor uses the correct minimum, maximum, and purity gap rules to determine your worship state — in real time, based on your daily logs.
No more manual calculations. No more conflicting Google results. Just clear, faith-aligned ṭahārah guidance from a tool that understands your fiqh.
This guide is based on established scholarly positions across the four madhhabs. For personal certainty or complex situations, we always recommend consulting a trusted scholar.
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Noor applies Ḥanafī, Mālikī, Shāfiʿī, or Ḥanbalī ḥayḍ rulings to your cycle — so you always know when to worship.