Musnad Ahmad 1017:24

Muhammad ibn Fudayl narrated to us, Dirar—meaning Ibn Murrah Abu Sinan—narrated to us, from Muharib ibn Dithar, from Abdullah ibn Buraydah, from his father, who said: The Messenger of Allah (ﷺ) said: "I had forbidden you from visiting the graves, so visit them. And I had forbidden you from keeping the meat of the sacrificial animals for more than three days, so keep it for as long as you wish. And I had forbidden you from nabidh (fermented drink) except in a waterskin, so drink from all types of waterskins, but do not drink anything intoxicating."