«يَطْبَعُ الْأَسْجَاعَ بِجَوَاهِرِ لَفْظِهِ»
He shaped ornate rhyming prose with the jewels of his words.
Describing rhymed phrases as jewels evaluates artistry. It does not independently certify the preacher’s honesty or motives. The narrator first witnesses performance; later actions provide evidence about the performer.
An eloquent moral address may move people to give. That is evidence of persuasion, not a conclusive character reference. Literary effect and the speaker’s personal reliability require different kinds of support.
Applied question
What does “jewels of his words” directly describe?