Surah Al-Isra' 29-30 (giving in charity)

In the name of Allah, The Most Gracious, The Most Merciful.

وَلاَ تَجْعَلْ يَدَكَ مَغْلُولَةً إِلَى عُنُقِكَ وَلاَ تَبْسُطْهَا كُلَّ الْبَسْطِ فَتَقْعُدَ مَلُومًا مَّحْسُوراً
إِنَّ رَبَّكَ يَبْسُطُ الرِّزْقَ لِمَن يَشَآءُ وَيَقْدِرُ إِنَّهُ كَانَ بِعِبَادِهِ خَبِيرًا بَصِيرًا

29. And let not your hand be tied (like a miser) to your neck, nor overextend it (like a spendthrift), so that you become blameworthy and in severe poverty.
30. Truly, your Lord expands the provision for whom He wills and straitens (for whom He wills). Verily, He is Ever All-Knower, All-Seer of His servants.

Lessons:
- Moderation in spending: Do not be miserly in giving sadaqah (alms), nor be extravagant that will end youself up in severe poverty that you will have to depend on others.
- Abu Hurayrah Radhiyallahu anh narrated: Wealth never decreases because of Sadaqah (charity). Allah never increases a servant who gives in charity except in honor, and whoever is humble for the sake of Allah, Allah will raise him in status. (Sahih Muslim)
-Abu Kathir narrated from `Abdullah bin `Amr Radhiyallahu anhumaa, who attributed it to the Prophet Sallallahu alihiwassalam :Beware of stinginess for it destroyed the people who came before you. It commanded them to be miserly, so they were miserly; and it commanded them to cut the ties of kinship, so they cut them; and it commanded them to commit immoral actions, so they did so.
-Allah is the One Who provides or withholds, the Bestower Who is running the affairs of His creation as He wills. He makes rich whomever He wills, and He makes poor whomever He wills, by the wisdom that is His.
-Allah Azza wajal knows and sees who deserves to be rich and who deserves to be poor. In some cases, richness may be decreed so that a person gets carried away, leading to his own doom. In other cases, poverty may be a punishment. We seek refuge with Allah from both.

And Allah knows best.