17:29

وَلَا تَجْعَلْ يَدَكَ مَغْلُولَةً إِلَىٰ عُنُقِكَ وَلَا تَبْسُطْهَا كُلَّ ٱلْبَسْطِ فَتَقْعُدَ مَلُومًا مَّحْسُورًا

Do not be so tight-fisted, for you will be blameworthy; nor so open-handed, for you will end up in poverty.