The Noble Scholar Shaykh Sulaymān Ar-Ruhaylī حفظه الله stated:

“If you narrate (to the people) a Hadīth that’s known to be a lie or is thought to be a lie (on the Prophet ﷺ) without you verifying (its authenticity), you are one of those who have lied (on the Prophet ﷺ).”

[Sharh Sahīh At-Targhīb wa At-Tarhīb #22]