Imam Ahmad reported from Khabbab bin Al-Aratt that he said, “I was a blacksmith and Al-‘As bin Wa’il owed me a debt. So I went to him to collect my debt from him. He said to me, ‘No, by Allah, I will not pay my debt to you until you disbelieve in Muhammad.’ I replied to him, ‘No, by Allah, I will not disbelieve in Muhammad until you die and are resurrected again. He then said to me, Verily, if I die and am resurrected, and you come to me, I will also have abundance of wealth and children and I will repay you then.’ Then, Allah revealed these Ayat,

{Have you seen him who disbelieved in Our Ayat and said: "/ shall certainly be given wealth and children."} until,

This was also recorded by the two compilers of the Sahihs and other collections as well. In the wording of Al-Bukhari it states that Khabbab said, “I used to be a blacksmith in Makkah and I made a sword for Al-‘As bin Wa’il. So I went to him to collect my pay from him...” then he mentioned the rest of the Hadlth and he said,

“This means an agreement.”

Concerning Allah’s statement,

{Has he known the Unseen} This is a rejection of the person who says,

Meaning, on the Day of Resurrection. In other words, “Does he know what he will have in the Hereafter, to such an extent that he can swear to it?”

Or has he received a promise from Allah that he will be given these things? It has already been stated that in Sahih Al-Bukhdri it is mentioned that covenant means an agreement.
Concerning Allah’s statement,

{Nay,} This is a participle that opposes what came before it and gives emphasis to what follows it.

{We shall record what he says,} what he is seeking, and his idea that he has given himself about what he hopes for, and his disbelief in Allah the Most Great.

{We shall increase his torment.} This is referring to what will happen in the abode of the Hereafter, because of his saying his disbelief in Allah in this life.

His wealth and children. It means, “We will take all of this from him, in opposition to his claim that he will be given more wealth and children in the Hereafter than he had in this life.” To the contrary, in the Hereafter that which he had in this life will be taken from him. This is why Allah says,

{And he shall come to Us alone.} without wealth or children.