Hadith al-Silsilah al-Dhahab (Arabic: حدیث سلسلة الذهب) (Hadith of the Golden Chain) is a hadith narrated from Ali al-Ridha, the eighth Imam of the Shia. The "chain" is a reference to the continuity of spiritual authority which is passed down from Muhammad to Ali ibn Abi Talib, through each of the Imams, to Imam Ridha. As transmitters of Hadith, the Imams link subsequent generations to the teachings of Mohammad. This transmission makes the Hadith of the Golden Chain valued as among the most truthful and accurate of all Hadiths for the Shi'ite.
The hadith is important to shia because it implies that, on one hand, monotheism takes the believers to "Allah's fortress", which is a safe shelter, and from the other hand Imamah is a fundamental precondition of entering this shelter ....LESS