Maujiza - miracles performed by Prophets
Difference between Maujizaa and Karamat
The untoward action which is impossible to perform, and a Prophet performs it to prove their prophecy and astonishes Infidels is known as a 'Maujizaa'. For example to bring back to life the dead, with the movement of the finger to split the moon into two. If these types of actions are performed by a Wali (friend of Allah) then it is known as a Karaamat. If they are performed by an ordinary person or wrongdoer or a Kafir then it is known as 'Istidraj'.
When seeing a Maujizaa the truth of a Prophet is accepted, because if this sort of power has been given to them to which they .can perform miracles, astonish people and make them helpless then they are truly a Messenger and a Prophet of Allah, as false liars who claim to be a Prophet cannot perform these types of miracles. Allah Ta'ala never gives the false claimants of Prophet-hood the power to perform Maujizaas, otherwise one would not be able to distinguish the difference between the true Prophets and false claimants.