The Shortest and Longest Menstruation, and the Shortest Purity Between Two

F91Chapter on Menstruation and Post-natal Bleeding

The Shortest and Longest Menstruation, and the Shortest Purity Between Two

What is the shortest and the longest span of menstruation, and the shortest purity that separates two menstruations?

Hanafi

The shortest menstruation is three days with their nights, the longest ten days with their nights; the shortest purity between two menstruations is fifteen days, and there is no limit to its longest.

Reference: Al-Hidāyah — Radd al-Muḥtār — Tabyīn al-Ḥaqāʾiq

Maliki

There is no lower limit to menstruation — a single flow suffices; its longest is fifteen days, and the shortest purity between two menstruations is fifteen days.

Reference: Al-Mudawwanah — Al-Sharḥ al-Kabīr — Mawāhib al-Jalīl

Shāfiʿī

The shortest menstruation is a day and a night, the longest fifteen days with their nights; and the shortest purity between two menstruations is fifteen days with their nights.

Reference: Al-Umm — Minhāj al-Ṭālibīn — Al-Majmūʿ

Hanbali

The shortest menstruation is a day and a night, the longest fifteen days; and the shortest purity between two menstruations is thirteen days.

Reference: Al-Mughnī — Al-Kāfī — Kashshāf al-Qināʿ