Sayyiduna Abu Sa'id (may Allah be pleased with him) said: A man prepared food and invited the Prophet (peace and blessings be upon him) and the Companions (may Allah be pleased with them). A man said: "I am fasting." The Messenger of Allah (peace and blessings be upon him) said: "Your brother has prepared food. Break your fast, and fast another day in its place."
(b) Ibn Abi Fudayk narrates from Ibn Abi Humayd: "If you wish," meaning the making up (qada).
(c) Muhammad bin al-Munkadir narrates from Sayyiduna Abu Sa'id (may Allah be pleased with him) that he prepared food for the Messenger of Allah (peace and blessings be upon him).
Ibn Abi Humayd is called Muhammad, and he is also called Hammad, and he is da'if (weak).
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصداق / 14537