And Allah has made for you Mates (and Companions) of your own nature, and made for you, out of them, sons and daughters and grandchildren. And provided for your sustenance of the best: will they then believe in vain things, and be ungrateful for Allah's favours?[Qur'an 16:72]

Narrated Sa'd bin Abi Waqqas(RA): Allah's Apostle(PBUH) said, "You will be rewarded for whatever you spend for Allah's sake even if it were a morsel which you put in your wife's mouth."