It is narrated from Sayyiduna Ibn Abbas (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him) ordered Sayyiduna Budayl al-Khuza'i (may Allah be pleased with him) to announce during the days of Tashriq: "Do not fast on these days, for they are days of eating and drinking."
Imam al-Tabarani (may Allah have mercy on him) said: "No one narrated this hadith from Amr bin Dinar (may Allah have mercy on him) except al-Mufaddal bin Salih (may Allah have mercy on him)."
Hadith Referenceالمعجم الأوسط / باب الميم / 7056
Hadith Takhrij«أخرجه الطبراني فى «الكبير» برقم: 11203، 11587»