Accuracy and benefit matter more than the amount of information passed on. Teaching one verse or one small point correctly can help someone; forwarding a hearsay statement under a confident religious attribution breaches the responsibility of knowledge.
Example 1: A student knows the reliable translation of a verse and shares it accurately, without pretending to know every detailed interpretation.
Example 2: A message contains an unattributed saying. Instead of labeling it a Prophetic statement, the recipient checks its origin before passing it on.
آيَةً in the phrase highlights even a small amount. The central lesson is careful communication, not indiscriminate circulation.