Is with him the knowledge of the Unseen so that he sees?

means, does this person, who stopped giving for fear of poverty and ended his acts of charity have knowledge of the Unseen and thus knows that if he does not stop giving, his wealth will go away?

No. Such a person has stopped giving in charity for righteous causes and did not keep relations with kith and kin because of his miserliness, being stingy and out of fear of poverty.

The Prophet said in a Hadith,

أَنْفِقْ بِلَلُ وَلَا تَخْشَ مِنْ ذِي الْعَرْشِ إِقْلَلاً

O Bilal, spend and fear not less provisions from the Owner of the Throne.

Allah the Exalted and Most honored said,

وَمَأ أَنفَقْتُمْ مِّن شَىْءٍ فَهُوَ يُخْلِفُهُ وَهُوَ خَيْرُ الرَّازِقِينَ

And whatsoever you spend of anything (in Allah's cause), He will replace it. And He is the Best of providers. (34:39)
<b>The Meaning of `fulfilled</b> 

Allah the Exalted said,

أَمْ لَمْ يُنَبَّأْ بِمَا فِي صُحُفِ مُوسَى