Suwayd (may Allah have mercy on him), the servant of Sayyiduna Salman (may Allah be pleased with him), related that he found a basket during a battle and gave it to Sayyiduna Salman (may Allah be pleased with him). He opened it, and in it were white bread and cheese, so Sayyiduna Salman (may Allah be pleased with him) ate from it.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب السير / 17999