لَيْسَ الْخَبَرُ كَالْمُعَايَنَةِ
Hearing a report is not the same as witnessing something firsthand.
Source: أحمد
الْخَبَرُ means a report about an event, while الْمُعَايَنَةِ means direct observation or witnessing. In لَيْسَ ... كَـ, the prefix كَـ introduces a comparison, and the sentence rejects the idea that hearing a report is identical to seeing an event firsthand.
A report may convey genuine information, whereas observation can reveal details not fully captured in words. Yet seeing is not an automatic guarantee of understanding, nor is every reliably transmitted report false. Context, sound evidence, and careful interpretation still matter.