This is a brief explanation of the text “Nawāqiḍ al-Islām” (The Nullifiers of Islam) by Shaykh al-Islām Muḥammad ibn ‘Abd al-Wahhāb al-Tamīmī (may Allah have mercy on him). The author mentioned in it ten nullifiers of Islam that are agreed upon by the scholars of the Ummah. The nullifiers of Islam are everything that takes a person out of Islam into major disbelief — whether a statement, an action, or a belief of the heart. These are what the jurists habitually mention when discussing the ruling on the apostate. It is not known that anyone before Shaykh al-Islām authored an independent work on this topic. Hence, this short text has great importance among the people of knowledge, because the nullifiers of Islam are among the most important things that a Muslim should learn in order to beware of falling into them.