Musnad Ahmad 8:36

Yahya ibn Sa'id narrated to us, from al-Ja'd ibn Aws, who said: 'A'ishah bint Sa'd narrated to me, she said: Sa'd said: I fell ill with an illness of mine in Makkah, and the Messenger of Allah (peace and blessings of Allah be upon him) entered upon me to visit me. I said: "O Messenger of Allah, I have left behind wealth, and I have no heir except one daughter. Shall I bequeath two-thirds of my wealth and leave her one-third?" He said: "No." I said: "Shall I bequeath half and leave her half?" He said: "No." I said: "Shall I bequeath one-third and leave her two-thirds?" He said: "The third, and the third is much," three times. He said: Then he placed his hand upon my forehead, and wiped my face, my chest, and my stomach, and said: "O Allah, heal Sa'd, and complete his migration for him." I have not ceased to imagine that I feel the coolness of his hand upon my liver until this hour.