Abu Hurairah reported,
The Messenger of Allah ﷺ said, "Whoever learns the art of eloquent speech to captivate the hearts of Some men, or of people, Allah will not accept from him on the Day of Resurrection any obligatory or voluntary deed."
Abu Dawud 5006
Daifحدثنا ابن السرح حدثنا ابن وهب عن عبد الله بن المسيب عن الضحاك بن شرحبيل
عن أبي هريرة قال
قال رسول الله ﷺ من تعلم صرف الكلام ليسبي به قلوب الرجال أو الناس لم يقبل الله منه يوم القيامة صرفا ولا عدلا
أبو داود 5006ضعيف
Contents
Reference
Commentary
Ayat
Collection
Sunan Abu Dawud
Book
Manners
Chapter
Boastful in speech
Numbering
Darussalam 5006
Details
Collection
Sunan Abu Dawud
Book
Manners
Chapter
Boastful in speech
Numbering
Darussalam 5006
Ayat
No annotations are available.
Reference
No references are available.
Commentary
Darussalam
[Its chain is daif] Bayhaqi related it in Adab, hadith no. 521, from the hadith of Abu Dawud, with the same wording.Regarding hadith 521, Dahhak bin Shurahbil's hearing from Abu Hurairah 
is questionable.