Musnad Abu Ya'la al-Mawsili 151:41

Ibn Numayr narrated to us, Hafs narrated to us, from Ibn Jurayj, from Sulayman ibn ‘Atiq, from Talq ibn Habib, from al-Ahnaf, from ‘Abdullah, who said: The Messenger of Allah (ﷺ) said: "The *mutanatti‘un* (those who are overly strict/excessive in speech or matters) are ruined." [He said it] three times.