Sayyiduna Safinah (may Allah be pleased with him) narrates: The Prophet (peace and blessings be upon him) had himself cupped, then he (peace and blessings be upon him) said: "Take this blood and bury it in a place where it will be safe from animals, birds and people." I went away and drank it. Later I mentioned this to the Prophet (peace and blessings be upon him), and he (peace and blessings be upon him) laughed.
Al-Tabarani recorded it, and al-Bazzar recorded it in abridged form, leaving out the part about the laughter; the narrators of al-Tabarani are thiqat (trustworthy).