As established previously, a diptote with the definite article al-, or when used as a muḍāf, may take kasra in the genitive.
Our examples with ʿUmar, ukhar, and aswad are selected without those conditions, so genitive fatḥa appears.
Today's main skill is identifying the cause of diptote status while retaining the earlier exception.
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Causes of Diptote Status — ʿAdl and Waṣf
As established previously, a diptote with the definite article al-, or when used as a muḍāf, may take kasra in the genitive.
Our examples with ʿUmar, ukhar, and aswad are selected without those conditions, so genitive fatḥa appears.
Today's main skill is identifying the cause of diptote status while retaining the earlier exception.