On the encouragement to verify what one says and relates

Riyad as-Salihin (The Meadows of the Righteous)

by Imam Nawawi

262. Chapter: On the encouragement to verify what one says and relates

Allah Almighty says, "Do not pursue what you have no knowledge of," (17:36) and the Almighty says, "He does not utter a single word without a watcher by him, pen in hand." (50:18)

1547. Abu Hurayra reported that the Prophet, may Allah bless him and grant him peace, said, "It is enough of a lie for a man to talk about everything he hears." [Muslim]

1548. Samura reported that the Messenger of Allah, may Allah bless him and grant him peace, said, "Anyone who relates a hadith as coming from me while considering it a false report is one of the liars." [Muslim]

1549. Asma' reported that a woman said, "Messenger of Allah, I have a co-wife. Would it be a sin if I were to pretend to have received something from my husband which he has not given me?" The Prophet, may Allah bless him and grant him peace,said, "Anyone who pretends to have received something he has not been given is like someone who wears two spurious garments [i.e. someone who dresses up to give a false impression]." [Agreed upon]