«فَتَنَاجَتِ الْجَمَاعَةُ فِيمَا يُسْبَرُ بِهِ قُلَيْبُهُ»
The assembly conferred quietly about how to probe the depth of his knowledge.
Tanājā is to converse privately; yusbaru evokes sounding or probing depth; qulayb is a small well. The writer likens an individual's hidden resources of intellect to water whose depth must be measured.
The group is now developing a technical exercise, one that should distinguish genuine command of expression from a bold but unsupported reputation.