The basic rule regarding expenditure is that Muslims have to be
moderate in eating, drinking, dressing, and furnishings. This is because of the general meaning of the following Ayah (Qur'anic verse) in which Allah (Exalted be He) says:
And those who, when they spend, are neither extravagant nor niggardly, but hold a medium (way) between those (extremes).
Allah (Exalted be He) also says:
O Children of Adam! Take your adornment (by wearing your clean clothes), while praying and going round (the Tawâf of) the Ka‘bah, and eat and drink but waste not by extravagance, certainly He (Allâh) likes not Al-Musrifûn (those who waste by extravagance).
May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.