وَنَبِّئْهُمْ أَنَّ ٱلْمَآءَ قِسْمَةٌۢ بَيْنَهُمْ ۖ كُلُّ شِرْبٍ مُّحْتَضَرٌ
Wa nabbi'hum annal maaa'a qismatum bainahum kullu shirbim muhtadar
Tell them the water is to be shared between them: each one should drink in turn.’
And tell them that the water is to be shared between them; each turn at drinking is to be attended.