The Mufassal divisions guide the normal resident's recitation length. They do not impose an exact number of verses for every prayer. A traveler is expressly given wider choice, and circumstances can justify shortening the recitation.
This distinction prevents the Sunnah guidance from being misread as a validity rule.
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The Sunnahs of Prayer, Part 2: Recitation and Movements
The Mufassal divisions guide the normal resident's recitation length. They do not impose an exact number of verses for every prayer. A traveler is expressly given wider choice, and circumstances can justify shortening the recitation.
This distinction prevents the Sunnah guidance from being misread as a validity rule.