Maʿi ordinarily means “with me.” Al-Quduri likewise treats it as admission of a trust when it establishes another's property in the speaker's possession.
If Zayd carries Khalid's sealed envelope and admits “Khalid's envelope is with me,” the admission concerns custody. It does not automatically make Zayd personally indebted for its contents. The chosen expression frames the legal claim.
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Maʿi: property in one’s possession
Kitab al-Iqrar: Debt and Trust, Admissions by Reply, and Deferred Debts
Maʿi ordinarily means “with me.” Al-Quduri likewise treats it as admission of a trust when it establishes another's property in the speaker's possession.
If Zayd carries Khalid's sealed envelope and admits “Khalid's envelope is with me,” the admission concerns custody. It does not automatically make Zayd personally indebted for its contents. The chosen expression frames the legal claim.