A person fully admits “I owe 100 dirhams,” then claims the next day that he intended to add “in shāʾ Allāh.” That later statement does not retroactively qualify the earlier complete admission.
The general distinction is between a qualification within the original expression and an attempted later retraction.
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A later statement cannot retract a completed admission
Kitab al-Iqrar: Conjoined Amounts, Divine-Will Clauses, and Options
A person fully admits “I owe 100 dirhams,” then claims the next day that he intended to add “in shāʾ Allāh.” That later statement does not retroactively qualify the earlier complete admission.
The general distinction is between a qualification within the original expression and an attempted later retraction.