It is narrated from Sayyiduna Abdullah bin al-Zubayr (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him) was cupped and gave me his blood, and said: "Take it away quickly (and bury it somewhere) so that no beast of prey, dog or human finds it." He said: I went off and (on the way) I drank that blood. Then I came to him (peace and blessings be upon him), and he (peace and blessings be upon him) asked: "What did you do (with the blood)?" I said: As you commanded me. He (peace and blessings be upon him) said: "I think you must have drunk it." I said: Yes. He (peace and blessings be upon him) said: "What will my Ummah encounter from you!"
Hadith Referenceالسنن الكبرى للبيهقي / كتاب النكاح / 13407