The key to heaven in protesting the Sunnah

The book of the key to Paradise in protesting the Sunnah is one of the valuable books for researchers and professors in the branches of the Hadith of Hadith; Where the book of the key to Paradise is included in protesting the Sunnah within the scope of the sciences of the hadith and the branches close to the science of jurisprudence, biography and other branches of the Prophet's guidance