Hadith of Golden Chain

[2] As transmitters of Hadith, the Imams link subsequent generations to the teachings of Mohammad.

[5] The story is that when thousands of people gathered to welcome their Ali al-Ridha's arrival at the entrance to Nishapur, some of the scholars requested he pronounce a hadith.

[3][9] Several Important hadith collections quoted it as Al-Tawhid, Ma'ani al-Akhbar, the Uyoun Akhbar Al-Ridha of ibn Babawayh and the Al-Amali of Shaykh Tusi.

[5] Hadith al-Silsilah al-Dhahab is narrated by Ali ibn Musa al-Ridha while entering Neyshabour.

The Imam (A.S.) then paused for a moment and continued, “There are few conditions entitling entrance to the fortress and I am one of its conditions [14]Ishaq Ibn Rahwayh said: When Abu al-Hasan al-Ridha arrived at Neyshabourand decided to leave the city to join Ma'mun, the hadith scholars gathered around him and said: "O son of Allah's apostle, are you leaving us without pronouncing a beneficial hadith for us?"

"[c][16]Although the last part of the hadith ("There are few conditions and I am one of its conditions") is omitted in most sunni hadith books, some of the sunni scholars such as Khaje Parsa Hanafi and Qazi Bahjat Affandi Shafi'i have mentioned this part in their narration.

[10] Al-Silsilah al-Dhahab is a Hadith Qudsi, i.e., the word of God, but differs from Quran.

[10] Shia and sunni scholars have narrated the hadith by Different expressions with authenticity.

This hadith is Musalsal meaning that it's a word of God and is conveyed from Prophet of Islam through Ahl al-Bayt to Ali al-Ridha.

According to shia view they are infallible and immune from error in practical matters, in inviting people to the religion and in perceiving the realm of cognition.