وَنَبِّئۡهُمۡ أَنَّ ٱلۡمَآءَ قِسۡمَةُۢ بَيۡنَهُمۡۖ كُلُّ شِرۡبٖ مُّحۡتَضَرٞ
Wanabbihum anna almaa qismatun baynahum kullu shirbin muhtadarun
And tell them that the water is to be divided between them: Each one´s right to drink being brought forward (by suitable turns).