وَالَّذِينَ إِذَا أَنفَقُوا لَمْ يُسْرِفُوا وَلَمْ يَقْتُرُوا وَكَانَ بَيْنَ ذَلِكَ قَوَامًا
[25:67]
And they who when they spend, are neither extravagant nor parsimonious, and (keep) between these the just mean.
Those who, when they spend, are not extravagant and not niggardly, but hold a just (balance) between those (extremes);
And those who, when they spend, are neither prodigal nor grudging; and there is ever a firm station between the two;