Allah said,

﴿الَّذِينَ يُنفِقُونَ أَمْوَلَهُمْ بِالَّيْلِ وَالنَّهَارِ سِرًّا وَعَلاَنِيَةً فَلَهُمْ أَجْرُهُم عِندَ رَبِّهِمْ وَلاَ خَوْفٌ عَلَيْهِمْ وَلاَ هُمْ يَحْزَنُونَ ﴾

(Those who spend their wealth (in Allah's cause) by night and day, in secret and in public, they shall have their reward with their Lord. On them shall be no fear, nor shall they grieve.)

This Ayah praises those who spend in charity for Allah's sake, seeking His pleasure, day and night, publicly and in secret, including what one spends on his family. The Two Sahihs recorded that the Messenger of Allah said to Sa`d bin Abi Waqqas:

«وَإِنَّكَ لَنْ تُنْفِقَ نَفَقَةً تَبْتَغِي بِهَا وَجْهَ اللهِ إِلَّا ازْدَدْتَ بِهَا دَرَجَةً وَرِفْعَةً، حَتَّى مَا تَجْعَلُ فِي فِي امْرَأَتِك»

(You will not spend charity with which you seek Allah's Face, but you will ascend a higher degree and status because of it, including what you put in your wife's mouth.)

Imam Ahmad recorded that Abu Mas`ud said that the Prophet said,

«إِنَّ الْمُسْلِمَ إِذَا أَنْفَقَ عَلَى أَهْلِهِ نَفَقَةً يَحْتَسِبُهَا، كَانَتْ لَهُ صَدَقَة»

(When the Muslim spends on his family while awaiting the reward for it from Allah, it will be written as charity for him.)

Al-Bukhari and Muslim also recorded this Hadith.

Allah said,

﴿فَلَهُمْ أَجْرُهُمْ عِندَ رَبِّهِمْ﴾

(shall have their reward with their Lord), on the Day of Resurrection, as reward for what they spent in acts of obedience. We previously explained the Ayah,

﴿فَلاَ خَوْفٌ عَلَيْهِمْ وَلاَ هُمْ يَحْزَنُونَ﴾

(there shall be no fear on them nor shall they grieve.)

﴿الَّذِينَ يَأْكُلُونَ الرِّبَواْ لاَ يَقُومُونَ إِلاَّ كَمَا يَقُومُ الَّذِى يَتَخَبَّطُهُ الشَّيْطَـنُ مِنَ الْمَسِّ ذَلِكَ بِأَنَّهُمْ قَالُواْ إِنَّمَا الْبَيْعُ مِثْلُ الرِّبَواْ وَأَحَلَّ اللَّهُ الْبَيْعَ وَحَرَّمَ الرِّبَواْ فَمَن جَآءَهُ مَوْعِظَةٌ مِّنْ رَّبِّهِ فَانتَهَى فَلَهُ مَا سَلَفَ وَأَمْرُهُ إِلَى اللَّهِ وَمَنْ عَادَ فَأُوْلَـئِكَ أَصْحَـبُ النَّارِ هُمْ فِيهَا خَـلِدُونَ ﴾

(275. Those who eat Riba will not stand (on the Day of Resurrection) except like the standing of a person beaten by Shaytan leading him to insanity. That is because they say: "Trading is only like Riba,'' whereas Allah has permitted trading and forbidden Riba. So whosoever receives an admonition from his Lord and stops eating Riba, shall not be punished for the past; his case is for Allah (to judge); but whoever returns (to Riba), such are the dwellers of the Fire ـ they will Abide therein.)