<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 Hajj in Islam? Context: Hajj holds great significance in Islam as it is considered one of the five pillars of the faith, requiring every physically and financially capable Muslim to make a pilgrimage to Mecca at least once in their lifetime. Answer: [/INST]Hajj is one of the five pillars of Islam and is an obligatory pilgrimage to Mecca that every Muslim who is physically and financially able must undertake at least once in their lifetime.</s>