Imam was asked about Jihad, striving in the way of God, recommended or compulsory ? He said , " Jihad in Islam is of four kinds : two of them on compulsory , one of them is recommended but cannot be performed except with a compulsory one , and one is solely recommended. One of the first two compulsory ones is striving of a man with himself to avoid committing sins which is greatest kind of Jihad. The second compulsory Jihad is fighting infidels. The third kind of Jihad which is recommended but cannot be carried out unless with a compulsory Jihad , is Jihad of the Islamic nation against their enemy which is compulsory on all the Muslim nation. If they live it away ,God's punishment will come , and this is a sort of nation punishment. But this Jihad is recommended for the Imam , leader of the Muslims , alone.
He is to come to the nation , and they together. Go for striving against the enemy. The fourth Jihad which is recommended is when a good tradition is initiated or revived by a person who strives for safeguarding it or improving it. This is among the best deeds , as it is reviving a good tradition. Surely , the Prophet( Peace be Upon Him and his Family ) said , " Whoever establishes a good tradition , he will be rewarded for it , and in addition , he will be rewarded for every other individual who has followed his tradition. (Tohaf-al- Uqoul , P 243)