Sahih al-Bukhari · Hadith 3509

Virtues and Merits of the Prophet (pbuh) and his Companions

Narrated Wathila bin Al-Asqa: Allah's Messenger (ﷺ) said, "Verily, one of the worst lies is to claim falsely to be the son of someone other than one's real father, or to claim to have had a dream one has not had, or to attribute to me what I have not said