Allah says:

{So his fruits were encircled}, meaning his wealth, or according to the other opinion, his crops. What is meant is that what this disbeliever was afraid of and what the believer had terrified him actually had happened. A storm struck his garden, a garden which he had erroneously thought would last forever, distracting him from thoughts of Allah, may He be glorified.

Qatadah said: "He was clasping his hands together in gesture of regret and grief for the wealth he had lost."

meaning a clan or children, as he had vainly boasted,

Here there are differences in recitation. Some of the reciters pause at the word there,

{nor could he defend himself there.}, i.e., at that time, when Allah sends the punishment upon him, there will be no one to save him. Then they start the next phrase with Al-Walayah;

Some of them pause at the phrase

{nor could he defend himself} and start the next phrase;

There is a further difference in the recitation of the word Al-Walayah. Some read it as Al-Walayah, which gives the meaning that all allegiance will be to Allah, i.e., on that Day everyone, believer or disbeliever, will return to Allah, for allegiance and submission to Him when the punishment comes to pass. This is like the Ayah:

{So when they saw Our punishment, they said: "We believe in Allah Alone and reject (all) that we used to associate with Him as partners."} [40:84] and Allah says concerning the Fir'awn;

{Till when drowning overtook him, he said: "I believe that none has the right to be worshipped but He in Whom the Children of Israel believe, and I am one of the Muslims." Now! While you refused to believe before and you were one of the mischief-makers.} [10:90-91]

Some others read it as Al-Wilayah, meaning that on that Day the rule will belong to Allah, the True God. Some read Haqqu (True) refering to Al-Wilayah, as in the Ayah:

{The sovereignty on that Day will be the true (sovereignty), belonging to the Most Gracious (Allah), and it will be a hard Day for the disbelievers} [25:26].

Others it read Haqqi referring to Allah, may He be glorified, as in the Ayah:

{Then they are returned to Allah, their True Protector.} (6:62)
So Allah says:

for deeds that were done for the sake of Allah, their reward is good and their consequences are all good.