Deception: its history, motives, damages, types, and the ruling on narrations of those described with it in the two authentic collections

"Al-tadlees" is one of the important discussions in the sciences of hadith, on which the judgment of the authenticity or weakness of the hadith is based, and it is used in the terminology of the hadith scholars to conceal a flaw in the chain of narration and to improve its apparent. This book comprehensively covers everything that specialized researchers and students of the Prophet's hadith need to know regarding al-tadlees, including discussions, issues, categories, and rulings, in a simplified style. The author divided the contents of the book into nine sections, and in the first section, he discussed the linguistic and terminological concept of al-tadlees, mentioning the common meaning of it in both. In the second, he provided a brief history of "al-tadlees" and the regions (bilad) it is known for. In the third, he defined the forms and types of "al-tadlees." In the fourth, he talked about some of the most important motives and disadvantages of "al-tadlees." In the fifth, he explained the methods of recognizing "al-tadlees" and its ruling. In the sixth, he touched on all categories and branches of "al-tadlees" with the ruling for each. In the seventh, he clarified the difference between "al-tadlees" and "al-irsal al-khafi" (hidden transmission). In the eighth, he discussed the ruling of "al-tadlees" in the two Sahihs (Al-Bukhari and Muslim) in light of the sayings of the imams of hadith and critics, along with responses to those objecting to the presence of narrations from al-mudallisin (those who commit al-tadlees) in these two books. As for the ninth section, the author dedicated it to defining some of the most important and useful books on "al-tadlees" and "al-mudallisin." The book concluded with a mention of several important conclusions reached through this study.