وَإِنْ كَانَ الْفِعْلُ مَعْنًى، وَجَازَ الْعَطْفُ، تَعَيَّنَ الْعَطْفُ، نَحْوُ: «مَا لِزَيْدٍ وَعَمْرٍو».
Translation: If the verbal force is only understood from the meaning and coordination is possible, coordination is required, as in “What is the matter with Zayd and Amr?”
This is case three. There is no explicit verb; the noun ʿAmr is coordinated with Zayd in the prepositional phrase.