«فَمَا عَلَى التِّبْرِ عَارٌ فِي النَّارِ حِينَ يُقَلَّبُ»
Gold incurs no disgrace when it is turned over in the fire.
The stranger’s verse is subjected to scrutiny, and gold becomes the image of intrinsic value under testing.
Tibr refers to gold in its unworked or raw state. The fire image conveys adversity and enduring worth; as a poetic analogy it is not an automatic moral certification of its speaker.