قاموس البدع

مستخرج من كتب الإمام العلامة محمد ناصر الدين الألباني

An important book for any salafi. This is a comprehensive book on innovation, it is a dictionary on innovations, collected from more than 100 books of Shaykh Al-Albanee and classified by worship : belief, purification, prayer, fasting...

The whole is preceded by an excellent introduction about innovation and its rules, extracted exclusively from the Shaykh Al-Albanee's words.