Discover the meaning of the term Al-qaʿda (قاعدة) in Islamic vocabulary.
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Updated on 11 April 2026 at 1:05 AM
📖 2 min readIt is a universal proposition applying to all its particulars.
The qanun, as passed; it is also applied, usually, to one side of the triangle, and to the line dividing the circle and its circumference into two unequal parts: that line is called, for the two arcs together, the chord (watar), and qa'ida (base) for each of the two segments.
In language: what the thing settles upon, that is, stabilizes and fixes upon. As a technical term: a universal proposition applying to all its particulars; so said al-Jurjani. Abu al-Baqa' said: a universal proposition in that it contains in potentiality the rulings of the particulars of its subject; those particulars are called branches (furu'), and their extraction from it tafri'; as our saying: 'every ijma' is right'. He said: the qa'ida gathers branches from various chapters, while the dabit gathers branches from one chapter (al-Kulliyyat, p. 728; al-Tawqif, p. 569; al-Ta'rifat, p. 149).
A line joining the two legs.
What the thing settles upon, that is, stabilizes and fixes upon.
It is a universal proposition applying to all its particulars.