In The Name of Allaah, The Most Merciful The Bestower of Mercy

Allaah (The One Free from all imperfections) said:

 ‘Those who are miserly and enjoin miserliness on other men and hide what Allaah has bestowed upon them of His Bounties.  And We have prepared for the disbelievers a disgraceful torment.’4:37

Imaam as-Saa’di (rahimahullaah) said about the statement of Allaah:

 ‘Those who are miserly’, that is: They refrain from fulfilling the rights obligatory upon them to fulfil.   ‘‘And enjoin miserliness on other men” through their statements and actions.  ”And hide what Allaah has bestowed upon them of His Bounties’; That is knowledge, through which the astray are guided and the ignorant ones are led aright. So, they hide it from them and make apparent to them falsehood that comes between them and the truth. Thus they (i.e. the misers) have gathered between miserliness with regards to wealth and knowledge, and between hastening towards loss for themselves and for others. This is a characteristic of the disbelievers, and for that reason Allaah (The Most High) said: ”And We have prepared for the disbelievers a disgraceful torment.”

Source: Tayseer Al-Kareem Ar-Rahmaan Fee Tafseeri Kalaam Al-Mannaan