হাদিসশাস্ত্রের পরিচয় (Introduction to Al-Hadith) :(part 3 )
Chapter No. 8 Sanad (Chain of Transmission) Made Essential Constituent of Deen Chapter No. 9 Terminology used to label the status of narrator of Hadith Chapter No. 8 Sanad (Chain of Transmission) Made Essential Constituent of Deen Ibne Sereen said: "This knowledge (of Hadith) is your Deen, so first verify from whom you are learning it (i.e. don't trust everyone, learn it from reliable one only)." (Muslim) He also said: "In earlier times if any one would narrate a Hadith, no body asked him about 'Sanad-’Chian of transmission’. Afterwards when 'Fitna' spread (i.e., when falsehood, innovations (Bid'ats) of Rwafiz, Khwarij, Marjia and Qadria groups started spreading), then people started asking for 'Sanad' to ascertain whether narrators were from Ahle-Sunnah, then they would accept the Hadith and if the narrators were Bida'ti, then they would reject it". (Muslim) Abu Zinad (Abdullah bin Zakwan, an Imam of Hadith) says that: ...