Ibn Umar (may Allah be pleased with them both) said: During the expedition of Tabuk, some cheese was brought to the Prophet (peace and blessings be upon him). He (peace and blessings be upon him) "called for a knife, mentioned the name of Allah, and cut it."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الضحايا / 19684