Warn Against Him Personally or Clarify the Mistakes?
Questioner: A man whose foundations are those of Ahlus-Sunnah and he traverses their methodology, and is known for defending it and for his service to their methodology, and sometimes some mistakes in the methodology emanate from him: should he be warned against personally or by clarifying his mistakes?
Al-Albaani: The second and not the first.
Al-Hudaa wan-Noor, 751.
http://shaikhalbaani.wordpress.com/2012/04/11/warn-against-him-personally-or-clarify-the-mistakes/