It is narrated from Hazrat Buraidah (may Allah be pleased with him) that the Holy Prophet (peace and blessings be upon him) said: I had forbidden you from three things: from going to the graveyards, but now you may go so that it may remind you of the Hereafter; I had forbidden you from eating the meat of sacrifice after three days, but now eat it and keep it as long as you wish; and I had forbidden you from drinking from specific vessels, but now you may drink from whichever vessel you wish, however, do not drink anything intoxicating.
Hadith Referenceمسند احمد / مسند الأنصار رضي الله عنهم / 23005
Hadith Gradingحکم دارالسلام:حديث صحيح، م: 977، وهذا إسناد قوي