According to the Salafi scholar Muhammad Taqi-ud-Din al-Hilali, "kufr is basically disbelief in any of the articles of faith. He also lists several different types of major disbelief, (disbelief so severe it excludes those who practice it completely from the fold of Islam):
- Kufr-at-Takdhib: disbelief in divine truth or the denial of any of the articles of Faith (quran 39:32)
- Kufr-al-iba wat-takabbur ma'at-Tasdiq: refusing to submit to God's Commandments after conviction of their truth (quran 2:34)
- Kufr-ash-Shakk waz-Zann: doubting or lacking conviction in the six articles of Faith. (quran 18:35–38)
- God
- His angels
- His Messengers
- His Revealed Books,
- The Day of Resurrection
- Al-Qadar, Divine Preordainments, i.e. whatever God has ordained must come to pass
- Kufr-al-I'raadh: turning away from the truth knowingly or deviating from the obvious signs which God has revealed. (quran 46:3)
- Kufr-an-Nifaaq: hypocritical disbelief (quran 63:2–3)
- Kufran-Ni'mah indicates "ungratefulness of God's Blessings or Favours".