Action Without Knowledge

Imam Ja’far As-Sadiq (as) has said, “A person who acts without knowledge is like a traveller who is proceeding on an unknown highway. The farther he goes, the farther away he will be from his destination.”
Every prayer has certain conditions to be fulfilled. If a person is not aware of these conditions, his prayer will be futile. For every action there is need for specific knowledge about it. If this were not the case, there wouldn’t have been any need for Allah to send His Prophets (S). When the highways of the world cannot be traversed without directions and guidance how can the way of the hereafter be found without proper knowledge and guidance. One must remember that the way to the hereafter is having thousands of stations and also thousands of satanic impediments to distract and misguide the person in his journey.

Repudiation of Edicts of the Inept
The gravest sin is to perpetuate lies about Allah and His Prophet (S). A person who is not aware of the Orders of Allah and has no capability to understand them and despite all this pretends to be knowledgeable can earn a place for himself in the Hell. But if he says, and gives a reference that he had heard that a particular Aalim has given a Fatwa (edict) may be pardoned.
Therefore to qualify for giving a Fatwa one has to be an Aalim or must have heard of a similar Fatwa from another Aalim of repute. Otherwise, the person who gives a Fatwa without full knowledge and authority will join the ranks of infidels.
The Prophet of Islam (S) has said, “O Abu Dharr! It is Allah’s Munificence that He has sent the Guides for the people. Offering thanks to Allah throughout one’s life will not be sufficient. Every morning and evening one must crave for His Forgiveness for the mistakes committed!”