[أَوَلَمْ يَرَوْاْ أَنَّا نَسُوقُ الْمَآءَ إِلَى الاٌّرْضِ الْجُرُزِ]

(Have they not seen how We drive water to the dry land) Here Allah explains His kindness and goodness towards them by His sending water to them, whether from the sky or from water flowing through the land, water carried by rivers down from the mountains to the lands that need it at particular times. Allah says:

[إِلَى الاٌّرْضِ الْجُرُزِ]

(to the dry land) which means the land where nothing grows, as in the Ayah,

[وَإِنَّا لَجَاعِلُونَ مَا عَلَيْهَا صَعِيداً جُرُزاً ]

(And verily, We shall make all that is on it a bare dry soil.) (18:8) i.e., barren land where nothing grows. Allah says here:

[أَوَلَمْ يَرَوْاْ أَنَّا نَسُوقُ الْمَآءَ إِلَى الاٌّرْضِ الْجُرُزِ فَنُخْرِجُ بِهِ زَرْعاً تَأْكُلُ مِنْهُ أَنْعَـمُهُمْ وَأَنفُسُهُمْ أَفَلاَ يُبْصِرُونَ ]

(Have they not seen how We drive water to the dry land that has no vegetation, and therewith bring forth crops providing food for their cattle and themselves Will they not then see) This is like the Ayah,

[فَلْيَنظُرِ الإِنسَـنُ إِلَى طَعَامِهِ أَنَّا صَبَبْنَا الْمَآءَ صَبّاً ]

(Then let man look at his food: We pour forth water in abundance.) (80:24-25). Allah says here:

[أَفَلاَ يُبْصِرُونَ]

(Will they not then see)

[وَيَقُولُونَ مَتَى هَـذَا الْفَتْحُ إِن كُنتُمْ صَـدِقِينَ - قُلْ يَوْمَ الْفَتْحِ لاَ يَنفَعُ الَّذِينَ كَفَرُواْ إِيَمَـنُهُمْ وَلاَ هُمْ يُنظَرُونَ - فَأَعْرِضْ عَنْهُمْ وَانتَظِرْ إِنَّهُمْ مُّنتَظِرُونَ ]

(28. They say: "When will this Fath be, if you are telling the truth'') (29. Say: "On the Day of Al-Fath, no profit will it be to those who disbelieve if they (then) believe! Nor will they be granted a respite.'') (30. So turn aside from them and await, verily, they (too) are awaiting.)