FeatureTaqrirTafsir
Initial wordingApparent meaning, with alternativesMeaning not sufficiently disclosed
Further wordingConfirms the apparent senseReveals the missing detail
ExampleOne thousand, meaning local currencyTen dirhams plus an unspecified surplus, then specified
OutcomeCompeting possibility removedUnidentified object or quantity identified
Diagnostic question: Did the original words already point to one dominant meaning? If so, later words confirming it are taqrir. If the object or quantity was not yet disclosed, identifying it is tafsir.
The decisive factor is the degree of disclosure in the earlier statement, not the mere length of the later explanation.