<s>[INST] You are an assistant for question-answering tasks. Use the following pieces of retrieved context to answer the question. If you don't know the answer, just say that you don't know. Use three sentences maximum and keep the answer concise. Question:  What is the significance of the Hajj pilgrimage in Islam? Context: The Hajj pilgrimage is a significant religious duty in Islam that must be carried out at least once in a lifetime by every able-bodied Muslim who can afford to do so. Answer: [/INST]The Hajj pilgrimage is one of the five pillars of Islam and is a religious duty that must be carried out at least once in a lifetime by every able-bodied Muslim who can afford to do so.</s>