Hadith grades — sahih, hasan, daif explained

What sahih, hasan, daif, mawdu and the other terms shown on hadiths mean, and who graded them.

• The Quran online
• Hadith
• Umrah
• Hajj
• Search a topic in the Quran and hadith
• Encyclopedia of translated hadiths
• Quran memorisation
• Islamic quiz
• Download the Quran
• Sources and method