Suwayd bin Sa'id (may Allah have mercy on him) said: I heard Malik bin Anas, Hammad bin Zayd, Sufyan bin Uyaynah, al-Fudayl bin Iyad, Sharik bin Abdullah, Yahya bin Sulaym, Muslim bin Khalid, Hisham bin Sulayman al-Makhzumi, Jarir bin Abd al-Hamid, Ali bin Mushir, Abdah, Abdullah bin Idris, Hafs bin Ghiyath, Waki', Muhammad bin Fudayl, Abd al-Rahim bin Sulayman, Abd al-Aziz bin Abi Hazim, al-Darawardi, Isma'il bin Ja'far, Hatim bin Isma'il and Abdullah bin Yazid al-Muqri (may Allah have mercy on them), and all those from whom I acquired knowledge, saying: Faith is speech and action; it increases and decreases. The Qur'an is the speech of Allah, an attribute of His; it is not created, and whoever says that it is created is a disbeliever in Allah.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الشهادات / 20890