SHAFAQNA (Shia International News Association) – Therefore God has chosen all the divine proofs from amongst his servants and these noble chosen ones are blessings from the Almighty to the people. Molla Saleh Mazandarani in the explanation of Osoul-e-Kafi after reporting this narration (Hadith) said: The intention of Imam (AS) is to say whoever wishes to acquire knowledge, wisdom and secrets of the religion should refer to us and ask us and through our teachings people will learn and will be guided by our guidance . Another important message of this Hadith is that the Caliph of Allah (SWT) must be appointed by the Almighty and they must be infallibles because God will not choose those who are sinners.
Regarding the authenticity of the Hadith one can say, even if someone doubts about Beharul Anwaar but whatever is mentioned in Nahjul Balagha cannot be doubted so easily because Nahjul Balagha is bigger than that, and a person cannot have the ability to dismiss it. The words of Nahjul Balagha are expressed in such a way that no one except Ali ibn Abitaleb (AS) would be able to utter them. The words of Imam (AS) point to one undeniable fact and that is, we believe in the Prophet (PBUH) and infallible Imams who are appointed by Allah (SWT) and they are protected and educated by the Almighty.
 Sharhe Osoul-e-Kafi, Vol. 2, Page 210.