Short answer

Yes, by Allah's (﷾) permission and in front of many witnesses. When the people of Mecca asked the Prophet Muhammad (ﷺ) for a sign, the moon was split. The Qur'an announced it to those same enemies. They did not deny it. They called it magic. At al-Hudaybiyah his Companions ran out of water, and water flowed from between his fingers until everyone had drunk and washed. The eyewitness Jabir puts their number at fourteen or fifteen hundred. The Prophet (ﷺ) said every prophet was given signs that led people to believe, and what he was given was the revelation. Islam teaches that the Qur'an is his lasting sign, which anyone can still read today.

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