Hadith
أَخْبَرَنَا الْعَبَّاسُ بْنُ عَبْدِ الْعَظِيمِ الْعَنْبَرِيُّ، عَنِ الأَحْوَصِ بْنِ جَوَّابٍ، عَنْ عَمَّارِ بْنِ رُزَيْقٍ، عَنْ أَبِي إِسْحَاقَ، عَنِ الزُّبَيْرِ بْنِ عَدِيٍّ، عَنِ ابْنِ بُرَيْدَةَ، عَنْ أَبِيهِ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " إِنِّي كُنْتُ نَهَيْتُكُمْ عَنْ لُحُومِ الأَضَاحِي بَعْدَ ثَلاَثٍ وَعَنِ النَّبِيذِ إِلاَّ فِي سِقَاءٍ وَعَنْ زِيَارَةِ الْقُبُورِ فَكُلُوا مِنْ لُحُومِ الأَضَاحِي مَا بَدَا لَكُمْ وَتَزَوَّدُوا وَادَّخِرُوا وَمَنْ أَرَادَ زِيَارَةَ الْقُبُورِ فَإِنَّهَا تُذَكِّرُ الآخِرَةَ وَاشْرَبُوا وَاتَّقُوا كُلَّ مُسْكِرٍ " .
It was narrated from Ibn Buraidah that his fhater said:"The Messenger of Allah said: "I used to forbid you (from eating) the meat of sacrificial animals after three days, and to (make) Nadidh except in a water skin, and to visit graves. But now eat whatever you want of the meat, or take some with you (when traveling) or store it: and whoever wants to visit graves, it will remind him of the Hereafter; and drink, but beware of any kind of intoxicant."' (Sahih)
Sahih · Abu Ghuddah
Sunan an-Nasa'i 4430 ·Book 43, Hadith 70·Also available on sunnah.com·