Sayyidah Aishah (may Allah be pleased with her) said: When the Prophet (peace and blessings be upon him) passed away, there was nothing in my house that a living creature could eat except some barley that was kept on a shelf. I kept eating from it and many days passed; then I measured it, and it ran out.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب النكاح / 13316