Surah 54. Al-Qamar, Ayah 2

 A miracle (usually referred to as a ‘sign’ in the Quran) can be defined as an extraordinary event manifesting divine intervention in human affairs. Every prophet was given miracles to prove he was commissioned by Allah. Moses (ﷺ) was given the miracle of the staff and many others. Jesus (ﷺ) gave life to the dead and healed the blind and the leper. And Muḥammad (ﷺ) received the Quran, a literary miracle, to challenge the masters of Arabic eloquence. The Prophet (ﷺ) performed some other miracles such as splitting the moon, multiplying food and water, and healing some of his companions.

Mustamirr: continuous, or powerful; either meaning will apply. The Unbelievers acknowledge the unusual appearance, but call it magic. They do not therefore profit by the spiritual lesson.