From Sahih Bukhari (Hadith 5146):
Narrated Ibn `Umar:Two men came from the east and delivered speeches, and the Prophet (ﷺ) said, "Some eloquent speech has the influence of magic." (e.g., some people refuse to do something and then a good eloquent speaker addresses them and then they agree to do that very thing after his speech)
Reference: Bukhari 5146