1 Samuel 30:12-13

12and they also gave him a piece of fig cake and two cakes of raisins. When he had eaten, his spirit came back to him, for he had eaten no bread and drunk no water for three days and three nights.

13Then David asked him, “To whom do you belong? Where are you from?” “I am a young Egyptian, the slave of an Amalekite,” he said. “My master abandoned me three days ago because I fell sick.