Abu Hurairah (May Allah be pleased with him) said:
The Prophet (ﷺ) said, "It is enough for a man to prove himself a liar when he goes on narrating whatever he hears."[Muslim]. (JA)
App reference (JA): Book 18, Hadith 37 (JA)
Arabic/English book reference (JA): Book 18, Hadith 1547 (JA)