Convey from me, even if it is one verse
Narrated 'Abdullah ibn 'Amr may Allah be pleased with him:
that the Messenger of Allah (may the peace and blessings of Allah be upon him) said: "Convey from me, even if it is one verse, and narrate from the Children of Isra'il, and there is no harm, And whoever lies upon me purposely, then let him take his seat in the Fire."
[Al- Bukhari]
Allah sent his Prophet Muhammad ( may the peace and blessings of Allah be upon him) to teach people the fundamentals of religion, which he accepted for his slaves and made them naturally inclining to it, to complete the ethics, to purify the evil souls from whatever may disturb the faith and affects negatively the soundness of the hearts. So that people follow the path of Allah to whom belong whatever in the Heavens and the earth.
The Prophet ( may the peace and blessings of Allah be upon him ) said: " Convey from me, even if it is one verse,” as if he said: convey from me what you have heard of me, or you have seen me doing. Those behind you have not seen or heard from me what you have seen and heard. This is one of the greatest duties that you have to do. As well those who received the knowledge from you shall convey it.
What is meant by the verse – in this Hadith - is the Quranic verse as it is apparent; because the Quran is the book in which Allah clarified for his servants all that they need. Therefore, it is obligatory on every Muslim who memorized a verse of it to convey it.
The Sunnah is included because it illustrates the Qur'an. Indeed, the Qur'an and Sunnah are one entity, as many scholars hold this view, because they are related.
It was narrated from Zaid ibn Thabit, may Allah be pleased with him, that:
The Messenger of Allah ( may the peace and blessings of Allah be upon him ) said: "May Allah cause his face to shine, the man who hears what I say and conveys it (to others). There are those who have knowledge but no understanding, and there may be those who convey knowledge to those who have more understanding of it than they do. "
Obtaining this glad tiding is contingent on conveying this blessed call. In other words, Allah will not illuminate the face of any one who conceals the knowledge. The scholars are the heirs of the Prophets, as we know, and they are an extension of the Prophets in the call to Allah the almighty. They have to convey what they heard.
Therefore, the companions of the Prophet, may Allah be pleased with them, used to verify what they will convey, so that they would not convey to people but they are sure of hearing it directly from the Prophet (may the peace and blessings of Allah be upon him), or heard it from someone who heard it directly from him (may the peace and blessings of Allah be upon him).