كُلٌّ فِي فَلَكٍ
Each moves in an orbit.
In qalb mustawī, the relevant sequence of letters reads in matching order from both ends. Changing even one component can preserve the broad meaning while destroying the reversal property.
Verification therefore concerns the actual Arabic letter sequence, not the letters of the translation or the number of words. The example should not be treated as interchangeable with every subtype of reversed-word paronomasia.