HajjHajj (hɑːdʒ; حَجّ DIN; sometimes also spelled Hadj, or Haj in English) is an annual Islamic to Mecca, Saudi Arabia, the holiest city for Muslims. Hajj is a mandatory religious duty for Muslims that must be carried out at least once in their lifetime by all adult Muslims who are physically and financially capable of undertaking the journey, and of supporting their family during their absence from home. In Islamic terminology, Hajj is a pilgrimage made to the Kaaba, the "House of Allah", in the sacred city of Mecca in Saudi Arabia.
MahdiThe Mahdi (al-Mahdī) is a Final Leader in Islamic eschatology who is believed to appear at the end of times to rid the world of evil and injustice. He is said to be a descendant of Muhammad who will appear shortly before the Prophet ʿĪsā (Jesus Christ) and will lead the Muslims to rule the entire world. Though the Mahdi is not referenced in the Quran, and is absent from several canonical compilations of hadith – including the two most-revered Sunni hadith collections: Sahih al-Bukhari and Sahih Muslim – he is mentioned in other hadith literature.
Islamic philosophyIslamic philosophy is philosophy that emerges from the Islamic tradition. Two terms traditionally used in the Islamic world are sometimes translated as philosophy—falsafa (philosophy), which refers to philosophy as well as logic, mathematics, and physics; and Kalam (speech), which refers to a rationalist form of Scholastic Islamic theology which includes the schools of Maturidiyah, Ashaira and Mu'tazila.
Islamic eschatologyIslamic eschatology (عِلْم آخر الزمان في الإسلام, ) is a field of study in Islam concerning future events that would happen in the end times. It is primarily based on sources from the Quran and Sunnah. Aspects from this field of study include the signs of the final age, the destruction of the universe and Judgement Day. The general consensus of Muslim scholars agree there would be tremendous and distinctive signs before the world ends.
AqidahAqidah (ʿaqīdah (ʕɑˈqiːdæ, ʕɑˈqɑːʔɪd), plural عقائد ʿaqāʾid, also rendered ʿaqīda, aqeeda, etc.) is an Islamic term of Arabic origin that literally means "creed". It is also called Islamic creed and Islamic theology. Aqidah go beyond concise statements of faith and may not be part of an ordinary Muslim's religious instruction. It has been distinguished from Iman in "taking the aspects of Iman and extending it to a detail level" often using "human interpretation or sources". Yet in contrast with Iman, Aqidah is not a term in the Qur'an.
KafirKafir (كافر DIN; plural كَافِرُونَ DIN, كفّار DIN or كَفَرَة DIN; feminine كافرة DIN; feminine plural كافرات DIN or كوافر DIN) is an Arabic and Islamic term which, in the Islamic tradition, refers to a person who disbelieves in God as per Islam, denies his authority, or rejects the tenets of Islam; or simply all those who are not Muslims—those who do not believe in the guidance of Islamic prophet Muhammad. Thus the term DIN is the opposite of the term Muslim.