Ash-Shu'ara' - 26:43

قَالَ لَهُم مُّوسَى أَلْقُوا مَا أَنتُم مُّلْقُونَ
[26:43]
Musa said to them: Cast what you are going to cast.
Moses said to them: "Throw ye - that which ye are about to throw!"
Moses said unto them: Throw what ye are going to throw!