Discover the meaning of the term Al-bdyhy (بديهي) in Islamic vocabulary.
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Updated on 11 April 2026 at 1:05 AM
📖 3 min readIt is that whose attainment does not depend on examination and acquisition, whether it needs something else, such as intuition or experience, or otherwise, or needs nothing, in which case it is synonymous with the necessary (daruri); it may also mean what needs nothing at all once the mind has turned to it, and then it is
It is knowledge whose attainment does not depend on examination and acquisition, such as conceiving heat and assenting that fire is hot. Further, evident assent: if conceiving its two terms suffices for asserting it, it is evident a fortiori, like assent that the whole is greater than the part; if it does not suffice, but something other than examination and acquisition is needed, such as intuition, experience, and sensation, it is still self-evident.
That whose attainment does not depend on examination and acquisition, whether it needs something else, such as intuition or experience, or not: it is then synonymous with the necessary (daruri). It may also mean what needs nothing after the mind's being directed to it: it is then more specific than the necessary, such as conceiving heat and cold, and assenting that negation and affirmation neither combine nor vanish together. (Al-Misbah al-Munir, (bdh) p. 16; al-Kulliyyat, p. 248; At-Tawqif, p. 120).
What needs no reflection or examination to be attained.
That whose attainment does not depend on examination and acquisition, whether it needs something else, such as intuition or experience, or not: it is then synonymous with the necessary. It may also mean what needs nothing after the mind's being directed to it: it is then more specific than the necessary, such as conceiving heat and cold, and assenting that negation and affirmation neither combine nor vanish together (At-Ta'rifat, p. 44). [Section of the letter dhal]
It is that whose attainment does not depend on examination and acquisition, whether it needs something else, intuition, experience, or otherwise, or needs nothing: it is then synonymous with the necessary.