avoiding extremes

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

And do not make your hand [as] chained to your neck or extend it completely and [thereby] become blamed and insolvent.