فيجعل غير السائل كالسائل إذا قدم إليه ما يلوح له بالخبر
A non-questioner is treated like a questioner when something is presented that points toward the coming report.
The listener has not actually uttered a question, but contextual signs make the issue vivid enough that a question is mentally anticipated. Instead of treating the listener as wholly indifferent, the speaker recognizes their expectation of information.
Additional illustration: someone hears that an important decision was reached at the office. Although they say nothing, the circumstances strongly suggest the unasked question, “What was decided?” An answer may therefore be expressed as though a question has already been put.