How Do We Earn & Spend Those US Dollars, Pound Sterling, Euros etc
In The Name of Allaah, The Most Merciful, The Bestower of Mercy
A reminder before we quote Imaam Ibnul Qayyim regarding earnings and spending
If earnings and spending is Haraam, blameworthy or worthless, ask Allaah –In This Month- to help you abandon such a path & take practical steps towards rectification!
Imaam Ibnul Qayyim (rahimahullaah) said: The Daraahim (i.e. monies) are four (types):  The dirham (i.e. money) that was earned in obedience to Allaah and spent in fulfilment of the rights of Allaah; this is of the best Daraahim. The dirham that was earned in disobedience to Allaah and spent in disobedience to Allaah; this one is the most evil of the Daraahim.  The dirham that was earned by way of harming a Muslim and spent to harm a Muslim; this one is the same as (dirham number two).  The dirham that was earned by way of permissible means and spent on permissible desires; this one is neither for nor against (you). This is the basis of the Daraahim.
Source: Al-Fawaa-id: page: 247