- The Noble Quran
- Sunnah of Prophet Muhammad
- Islamic Creed
- Tawhid (Monotheism)
- Worship
- Islam
- Imān (Faith)
- Matters of Faith
- Benevolence
- Disbelief (Infidelity)
- Hypocrisy
- Shirk (Polytheism)
- Religious Innovation: Types and Examples
- Companions and Family of Prophet Muhammad
- Tawassul (Solicitation)
- The Concept of the Miraculous Acts Done by Some Righteous People
- Jinn
- Loyalty and Friendship vs Disavowal and Enmity
- Ahl-us-Sunnah wa al-Jama‘ah
- Doctrines and Religions
- Sects
- Attributed Sects to Islam
- Contemporary Ideological Doctrines
- Islamic Jurisprudence
- Acts of Worship
- Purification and its Rulings
- Prayer
- Rulings of Funeral
- Zakah
- Fasting
- Pilgrimage and Umrah
- Friday Sermon
- Prayer of the Sick
- Prayer of the Traveler
- Prayer during Fear
- Transactions
- Oaths and Vows
- Family
- Marriage
- Divorce
- Recommended and Disliked Divorce
- Revocable and Irrevocable Divorce
- Woman’s Waiting Period
- Li‘ān (Husband Swearing His Wife Had Intercourse with Another Man)
- Zihār (Likening One’s Wife to His Mother; To Prevent Her On Himself)
- ilā’ (Swearing Not to Intercourse with One's Wife)
- Wife Seeking Divorce
- Taking back One's Divorced Wife
- Breastfeeding
- Child's Custody
- Alimony
- Clothes and Adornment
- Entertainment
- Muslim Society
- Youth Affairs
- Women Affairs
- Children Affairs
- Medicine and Treatment and Islamic Faith-Healing
- Foods and Drinks
- Islamic Criminal Law
- Judiciary System in Islam
- Jihad
- Fiqh of Contemporary Issues
- Fiqh of Minorities
- Islamic Policy
- Schools of Islamic Jurisprudence
- Fatāwa (Fatwas)
- Fundamentals of Islamic Jurisprudence
- Books on Islamic Jurisprudence
- Acts of Worship
- Virtues/Noble Characteristics
- Arabic Language
- Calling to Allah's Religion
- Issues That Muslims Need to Know
- Softening Hearts Reminders
- Promotion of Virtue and Prevention of Vice
- Current State of Calling to Allah's Religion
- Indonesian Lecturer : Omar Muhammad Al-Suwaid
The lecturer mentioned the obligation of fearing polytheism as it is the greatest sin because you set a partner for Allah although He is the one who created you. From the reasons of tumbling in polytheism is ignorance of religion.And the person dying as a polytheist without having repentence will stay in the hellfire everlastingly.