The virtue of studying hadith together

It is narrated from Abdullah bin Buraydah that Sayyiduna Ali (may Allah be pleased with him) said: Discuss hadiths among yourselves, for if you do not do so, this knowledge will be effaced (you will forget it).

It is narrated from Alqamah that Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) said: Discuss hadiths among yourselves, for the mention of hadith is its very life (the means of keeping it alive).

It is narrated from Sayyiduna al-Bara' bin Azib (may Allah be pleased with him) that he said: We did not hear all the hadiths directly from the Messenger of Allah (peace and blessings be upon him); rather our companions (the Companions) would narrate them to us, because we were (often) busy tending and grazing the camels.
This hadith has several chains from Abu Ishaq al-Sabi'i, and it is sahih (authentic) on the condition of the two Shaykhs (Bukhari and Muslim); there is no hidden defect ('illah) in it, but they did not record it.

It is narrated from Sayyiduna Ibn Abbas (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him) said: "You are hearing (knowledge from me), and (your students) will hear from you, and (knowledge) will be heard from those who hear from you."

It is narrated from Sayyiduna Ibn Abbas (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him) said: "You hear (from me), and it is heard from you, and it is heard from those who hear from you."
This hadith is sahih (authentic) on the condition of the two Shaykhs (Bukhari and Muslim), and there is no hidden defect ('illah) in it, but they did not record it. In this chapter there are also narrations from the Messenger of Allah (peace and blessings be upon him) reported by Sayyiduna Abdullah bin Mas'ud and Thabit bin Qays bin Shammas (may Allah be pleased with them both), and in the hadith of Thabit bin Qays the third generation (the followers of the Successors) is also mentioned.