«فَقَالَ أَحَدُهُمْ: ذَرُوهُ فِي حِصِّي»
One of them said: Leave him to my responsibility.
A member of the assembly volunteers to conduct the examination. Ḥiṣṣī means my share or charge. His next words turn the proposed test into images of a hard knot and a touchstone.
At this point the figure is not an impartial narrator's judgment that the elder is fraudulent. He is an opponent who thinks he possesses a task capable of distinguishing real mastery from pretension.