Imam Sadiq (AS) says: The Prophet (peace be upon him and his progeny) said to his companions: Which pretext of faith is stronger and the firmest? They said: Allah and His Messenger are more aware, some said: prayer, some people said: Zakat, Some people said: fasting, some folks said: Hajj and Umrah and a group of people said Jihad. Prophet Muhammad (PBUH & HP) said: there is a virtue for each one that you have mentioned; but they are not the answer to my question. The strongest and the firmest pretexts of faith is friendship for the sake of Allah and being enemy because of him and following the saints of Allah Almighty and expressing hatred toward his enemies.
source : erfan.ir
