﴿فَقُلْنَا اضْرِبْ بِعَصَاكَ الْحَجَرَ فَانْفَجَرَتْ مِنْهُ﴾
We said, “Strike the rock with your staff,” and water burst forth from it. (Excerpt from Al-Baqarah 2:60)
The command iḍrib and the result fa-nfajarat are expressed, but the actual performance of striking the rock is omitted. It may be reconstructed as fa-ḍarabahu bihā, “so he struck it with the staff.”
The narrative moves swiftly from instruction to effect. This omitted intervening event is intelligible because the command supplies the cause.
The fāʾ in fa-nfajarat may be analyzed as fāʾ faṣīḥah, because the intervening act is understood from the command.