«فَمَا عَلَى التِّبْرِ عَارٌ فِي النَّارِ حِينَ يُقَلَّبُ»
Gold incurs no disgrace when it is turned over in the fire.
Raw gold exposed to fire stands for worth surviving hardship. Negation removes the notion of shame, while ḥīna yuqallabu locates the image in the moment of testing.
This is analogical rhetoric, not a strict proof that every suffering person is truthful. Appreciate the image while assessing whether the speaker’s conclusion follows. The distinction is essential when judging Abū Zayd’s virtuosity.