تَقَبَّلَ means “he accepted.” From passive imperfect يُتَقَبَّلُ comes مُتَقَبَّلٌ. The shaddah on bāʾ is retained; the vowel on that doubled letter distinguishes the role.
مُتَقَبِّلٌ — the one accepting.
مُتَقَبَّلٌ — accepted.
Thus describing a supplication or act as mutaqabbal points to its being accepted; mutaqabbil instead identifies the acceptor.
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Deriving مُتَقَبَّلٌ
Passive Participles: Definition, Six Forms and Derivation
تَقَبَّلَ means “he accepted.” From passive imperfect يُتَقَبَّلُ comes مُتَقَبَّلٌ. The shaddah on bāʾ is retained; the vowel on that doubled letter distinguishes the role.
مُتَقَبِّلٌ — the one accepting.
مُتَقَبَّلٌ — accepted.
Thus describing a supplication or act as mutaqabbal points to its being accepted; mutaqabbil instead identifies the acceptor.