طَابَ زَيْدٌ أَبًا
Translation: Zayd is good with respect to his father / paternal relation.
طَابَ: past verb.
زَيْدٌ: nominative subject.
أَبًا: accusative tamyīz of relation, identifying the paternal aspect.
The source uses “or” to present alternative readings, not to require all three clarifiers simultaneously.
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At-Tamyīz: Clarifying Quantities and Sentence Relations
طَابَ زَيْدٌ أَبًا
Translation: Zayd is good with respect to his father / paternal relation.
طَابَ: past verb.
زَيْدٌ: nominative subject.
أَبًا: accusative tamyīz of relation, identifying the paternal aspect.
The source uses “or” to present alternative readings, not to require all three clarifiers simultaneously.