Sahih of Syedina Imam 'Asakir ud Din Muslim bin Hajjaj al Qushayri al Neyshapouri al Khurasani radziAllahu ta'ala 'anhu Ya Abu Hussain Ya Imam Muslim salam 'alayka Book 032, Number 6274: 'A'isha radziAllahu 'anha, the wife of Allah's Apostle saws reported Allah's Apostle saws as saying: "Kindness is not to be found in anything but that it adds to its beauty and it is not withdrawn from anything but it makes it defective."