Weak Hadith
The books
1 سنن أبي داودSunan Abi Dawud 727 hadith · Weak according to all graders 2 جامع الترمذيJami' at-Tirmidhi 575 hadith · Weak according to all graders 3 سنن النسائيSunan an-Nasa'i 214 hadith · Weak according to all graders 4 سنن ابن ماجهSunan Ibn Majah 752 hadith · Weak according to all graders 5 موطأ مالكMuwatta Malik 325 hadith · Weak according to all graders
A hadith is weak when it fails one of the conditions of an authentic hadith. Some are slightly weak and some are very weak or fabricated. Each hadith here shows how the scholars described it.
Read the page on grading to learn how scholars treat weak hadith, and never pass on a hadith that is graded fabricated.