Significance of Isnad (chain of authority and transmission of knowledge)

1. Al-Hakim reports through Thabit ibn Qays, that the Holy Prophet (blessings and peace be upon him) said to his Companions:
“You (the Sahaba) are listening and receiving from me and people (at-Tabi‘un i.e. the Successors) will listen and receive from you. Then people (the atba‘ at-tabi‘in) will listen and receive from those (the Successors) who listened and received from you. Then people (the fourth generation) will listen and receive from those (the atba‘ at-tabi‘in) who were the audience and recipient of the Successors, who had listened and received from you.”
[Related by al-Hakim in Ma‘rifa ‘Ulum al-Hadith, p. 60.]
2. According to ‘Abdu’llah ibn Mas‘ud (may Allah be well pleased with him), the Messenger of Allah (Allah bless him and give him peace) said:
“May Allah brighten a man who listened from us something and then passed it on to others exactly as he heard it because many a person to whom something is transmitted retains better than the person who first heard it.”
[Related by at-Tirmidhi in as-Sunan, vol. 5, p. 34 # 2657; and Ibn Maja in as-Sunan, vol. 1, p. 85 # 232.]
3. According to ‘Abdu’llah ibn Mas‘ud (may Allah be well pleased with him), Allah’s Messenger (Allah bless him and give him peace) said:


“May Allah keep him enjoying and rejoicing who heard something from me, remembered it and kept it well in his mind and then narrated it (to others).”
[Reported by al-Imam ash-Shafi‘i in al-Musnad (p. 240) and ar-Risala (p. 401 # 1102); and at-Tabarani in al-Mu‘jam al-Kabir, vol. 2, p. 126 # 1541.]

4. According to Zayd ibn Thabit (may Allah be well pleased with him), he heard the Messenger of Allah (Allah bless him and give him peace) say:


“May Allah grant him happiness who heard a tradition from me, learnt it by heart and conveyed it to others. There will be many jurists who will narrate the tradition to better jurists than themselves and there will be several others who will not be in truth jurists at all.”
[Related by Abu Dawud in as-Sunan, vol. 3, p. 322 # 3660; and Ibn Maja in as-Sunan, vol. 1, p. 86 # 236.]

5. According to ‘Abdu’llah ibn ‘Amr (may Allah be well pleased with him), the Messenger of Allah (Allah bless him and give him peace) said:
“Transmit from me may it be only a verse. And there is no harm in narrating events from the Children of Israel. And he who deliberately fabricates a lie on me builds his abode in the Fire.”
[Related by al-Bukhari in as-Sahih, vol. 3, p. 1275 # 3274; Ibn Hibban as-Sahih, vol. 14, p. 149 # 6256; and Ahmad ibn Hanbal in al-Musnad, vol. 2, pp. 159, 202, 214.]

6. According to Abu Qarsafa (may Allah be well pleased with him), Allah’s Messenger (blessings and peace be upon him) said:


“Whatever you hear from me, narrate it to others and never say anything but truth. And whoever will fabricate a lie on me for him a house will be built in Hell.”
[Reported by at-Tabarani in Turuq Hadith man Kadhaba ‘Alayya, p. 146 # 155; and in al-Mu‘jam al-Kabir, vol. 3, p. 18 # 2516.]

7. According to ‘Abdu’llah ibn ‘Abbas (may Allah be well pleased with him and his father), the Messenger of Allah (Allah bless him and give him peace) said:


“Obtain knowledge and facilitate and do not complicate. And if anyone of you feels infuriated he should keep silent.”
[Related by Ahmad ibn Hanbal in al-Musnad, vol. 1, p. 239; and al-Bukhari in al-Adab al-Mufrad, p. 95 # 245.]

8. According to Abu Hurayra (may Allah be well pleased with him), the Messenger of Allah (Allah bless him and give him peace) said:


“Learn the Qur’an and (the knowledge of) the shares of inheritance and teach them to the people because I am going to depart (physically).”
[Related by at-Tirmidhi in as-Sunan, vol. 4, p. 413 # 2091; and an-Nasa’i in as-Sunan, vol. 4, p. 63 # 6306.]

9. ‘Amr ibn ‘Awf al-Muzani (may Allah be well pleased with him) narrated:


“The Holy Prophet (Allah bless him and give him peace) said to Bilal ibn al-Harith (may Allah be well pleased with him): “Know.” He submitted: “O Messenger of Allah! What should I know?” He said: “Know, O Bilal.” He submitted: “O Messenger of Allah! What should I know?” He said: “He who revives of my Sunna that which ceased after me will get his rightful due as much of recompense as will be due for its practitioner without any decrease in his recompense. And he who initiates a misleading innovation disgusted by Allah and His Messenger (Allah bless him and give him peace) will incur the same sin which will be on its perpetrator without any mitigation.”
[Related by at-Tirmidhi in as-Sunan, vol. 5, p. 45 # 2677.]

10. According to Abu Hurayra (may Allah be well pleased with him), the Messenger of Allah (Allah bless him and give him peace) said:


“He who sticks to my Sunna at the time of mischief and strife will get reward of a martyr.” [Related by Abu Nu‘aym in Hilya al-Awliya‘, vol. 8, p. 200; and Haythami in Majma‘ az-Zawa’id, vol. 1, p. 172.]