خَيْرُكُمْ مَنْ تَعَلَّمَ الْقُرْآنَ وَعَلَّمَهُ
The best among you is the one who learns the Qur’an and teaches it.
Source: Bukhari.
خَيْرُكُمْ means “the best of you.” مَنْ here means “the one who.” تَعَلَّمَ means “learned,” whereas عَلَّمَ means “taught.” The pronoun ـهُ at the end of وَعَلَّمَهُ refers back to the Qur’an.
The report connects two actions: learning the Qur’an carefully and then teaching what one has learned correctly.
Teaching requires accuracy, awareness of a learner’s level, and recognition of one’s own limits. A point not yet understood well should not be passed on as certain knowledge.