وَتُغَلِّبُ حُبَّ ثَوْبٍ تَشْتَهِيهِ عَلَى ثَوَابٍ تَشْتَرِيهِ
You allow love for a desired garment to outweigh a reward you could earn.
Thawb is clothing; thawāb is reward. Tashtahīhi signals desire, while tashtarīhi pictures acquiring something through effort or a price.
The rebuke concerns the dominance of desire, not a blanket prohibition on clothing.