Surat Al Isra' (25-26)

{رَّبُّكُمْ أَعْلَمُ بِمَا فِي نُفُوسِكُمْ إِن تَكُونُواْ صَالِحِينَ فَإِنَّهُ كَانَ لِلأَوَّابِينَ غَفُوراً} (الإسراء: 25)

25- Man is not free of error, negligence, and words that are said with the purpose of bringing about benefit. Allah is All-Knowing of what you concealed in yourselves and in your hearts. So, if you are righteous believers, seeking forgiveness and return to Him in repentance, for Allah accepts repentance and pardons you.

{وَآتِ ذَا الْقُرْبَى حَقَّهُ وَالْمِسْكِينَ وَابْنَ السَّبِيلِ وَلاَ تُبَذِّرْ تَبْذِيراً} (الإسراء: 26)

26- Establish good relationship with your kinship, give your relatives your due rights, treat them kindly, give the needy your Zakah, and give him charity as much as you can. Likewise you should do with the wayfarer who is away from his country and does not have anything to spend thereof. Be moderate in expenditure and do not become extravagance.

Mujahid (may Allah bestow mercy on him) said: If a person spends all his money for the truth, he shall not become a wasteful person, but if he spends a little amount of money in improper position, he shall become extravagant.

The author of Fi Zhilal Al Qur'an said: The meaning is not spending much or little but spending in proper positions.