Umar al-Ansari narrates: I asked Sayyiduna Wathilah bin al-Asqa' (may Allah be pleased with him) about praying behind a person belonging to the Qadariyyah sect. He said: Do not pray behind him. If I had prayed behind him, I would repeat my prayer.
Al-Tabarani recorded it in al-Mu'jam al-Kabir as a narration of Habib bin Umar from his father. Ibn Hibban mentioned Habib in his book al-Thiqat, but I do not know his father Umar. The narrator Baqiyyah is a mudallis (one who practises tadlis).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الصلاة / 2338