SHAFAQNA – It is narrated from the Prophet (PBUH) who said: Always deem necessary our (Ahlul Bait) love and friendship ; meaning never be neglectful regarding our love and friendship, never allow even one second your hearts be without our love and friendship.
Of course this narration is long but in another part of it, the Prophet (PBUH) said: I swear to the One who gave me life (swear to God), the good deeds do not benefit a person unless he/she has knowledge about us; meaning he/she to know that we are the truth.
One point which needs to be mentioned here is regarding the good deeds carried out for the sake of God by a person and the effects of those deeds on himself/herself, these all depend on the friendship between that person with Ahlul Bait (AS). For example performing Salaat, we have rewards and also have the spiritual effects on the human being who performs it.
Now, if a person does not recognize the truth of Ahlul Bait (AS) in the heart and outwardly; this person’s deed has no effect but it does not mean that he will not be rewarded for performing Salaat. The spiritual issues and deeds carried out by a person have effects when he/she has the love and the friendship of Ahlul Bait (AS) .
 Amaali by Sheikh Mofeed, page 140 and Beharul Anwaar, Vol. 27, page 193.
 Website of Ayatollah Sheikh Mojtaba Tehrani.