Musnad Ahmad 1153:1048

Waki’ narrated to us, Ayman ibn Nabil narrated to us, from a woman of Quraysh called Umm Kulthum, from Aisha, who said: The Messenger of Allah (peace and blessings of Allah be upon him) said: "You must use the disliked yet beneficial: Talbinah," meaning broth. She said: And the Messenger of Allah (peace and blessings of Allah be upon him), whenever one of his family members was ill, the pot would not be removed from the fire until one of two outcomes was met, meaning he would either recover or die.