Silsilat al-Ahadith al-Daifa wa al-Mawduwa

Silsilat al-Ahadith al-Daifa wa al-Mawduwa wa Atharuha al-Sayyi fi al-Ummah (Arabic: سـلسـلة الأحاديـث الضـعـيـفـة و الـمـوضـوعـة و أثـرها السيء في الأمـة, lit. 'Series of Weak and Fabricated Hadiths and Their Harmful Effect on the Ummah'), or simply known as Silsilat al-Ahadith al-Daifa, is a 21st-century, 14-volume secondary collection of hadiths compiled by Al-Albani. Considered his magnum opus, its content was initially published as a series of articles in the magazine al-Tamaddun al-Islami in Damascus. In this compilation, Albani systematically examined and categorized thousands of weak and fabricated hadiths, providing evidence for their inauthenticity. The primary purpose of the work was to prevent the dissemination of weak and fabricated hadiths and to respond to requests from scholars for a comprehensive compilation of such hadiths. The collection continues to serve as a reference for scholars and students of hadith.