:salam2: the splitting of the moon has already been happened, this happened during the Prophet (SAW) actually he was the one who split it to show the kafirs that he is sent by Allah (SWT)
In the name of God, the Merciful, the Compassionate
The Hour has approached, and the moon split. But whenever they see a sign, they turn away and say, ‘This is evident magic.’ (54:1-2)
The miracle of the splitting of the moon was demonstrated before a certain gathering who persisted in denial of Muhammad’s Prophethood. As was related by ‘Adbullah ibn Mas‘ud, while they were in Mina’ one night, the Prophet split the moon into two by a gesture of his index finger. The halves of the moon appeared one behind the mountain and the other in front of it. Then, the Prophet turned to us and said: ‘Be witnesses!’1