just as some people said a mans face is his veil his pen is his writer and his tongue is his messenger so we say that a mans grandchildren are his hand and his foot. whoever spares you the effort of your hand has taken its place and whoever protects for you what your eye protects has sufficed you with its sufficiency.
وكما أن قوما قالوا حاجب الرجل وجهه وكاتبه قلمه ورسوله لسانه كذلك نقول إن حفدة الرجل يده ورجله لأن من كفاك التعاطي بيدك فقد قام عندك مقامها ومن كفاك السعي برجلك فقد ناب عنك منابها ومن حفظ لك ما تحفظه عينك فقد كفاك كفايتها