«تمتع من شميم عرار نجد / فما بعد العشية من عرار»
Enjoy the scent of Najd’s ʿarār, for after this evening it will no longer be available.
ʿArār appears within the first hemistich and returns at the end of the second. The echo highlights the contrast between a present opportunity and approaching loss.
This is an interior-first-hemistich → final-second-hemistich placement, with repetition as its verbal relation.