Mishkat al-Masabih

‘A’isha said the Prophet asked how much was left of a sheep which they had killed, and when she told him that only its shoulder Remained, he replied, “The whole of it is left except its shoulder.”* Tirmidhi transmitted it and said it is sahih. * Meaning that what one gives to others has lasting value, as such giving is fundamentally done for God’s sake; whereas what one keeps indicates selfishness and so has only transient value.