Some of our companions said: "What is meant by it is the open declaration, by one of them, of the denial of the attributes of Allah Almighty which the Book of Allah has mentioned, and whose affirmation the widely transmitted (mustafidah) Sunnah, together with the consensus of the predecessors (Salaf) of this ummah, has indicated, such as speech, power, knowledge and will; and (likewise the denial) that all actions are created by Allah Almighty. For reports have come declaring those who deny these to be disbelievers, and the predecessors of this ummah declared themselves free of the doctrine of the people of desires (the innovators) in these matters."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الشهادات / Q20869