In إِلَى وَرْدَةٍ حَمْرَاءَ, وَرْدَةٍ is the qualified noun and حَمْرَاءَ its adjective. Both are genitive within the prepositional phrase.
Their visible endings differ because وَرْدَةٍ is fully declinable while حَمْرَاءَ is a diptote. Agreement in grammatical case does not necessarily mean identical written case vowels.
Recall the earlier rule: with al- or iḍāfa, a diptote may take kasra in the genitive without ceasing to be a diptote.
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Causes of Diptote Status — Femininity and Its Conditions
In إِلَى وَرْدَةٍ حَمْرَاءَ, وَرْدَةٍ is the qualified noun and حَمْرَاءَ its adjective. Both are genitive within the prepositional phrase.
Their visible endings differ because وَرْدَةٍ is fully declinable while حَمْرَاءَ is a diptote. Agreement in grammatical case does not necessarily mean identical written case vowels.
Recall the earlier rule: with al- or iḍāfa, a diptote may take kasra in the genitive without ceasing to be a diptote.