Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) narrates from the Prophet (peace and blessings be upon him): "Whoever sends off a voluntary sacrificial animal to Makkah and it then perishes, he may eat from it if he wishes, or leave it if he wishes. If that sacrificial animal was from a vow, he must replace it."
The correct version is the narration of the group from al-Awza'i, and then the authentic one is the narration of Malik from Nafi'. And Allah knows best.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الحج / 10259
Hadith Gradingمحدثین:منكر رواية القرقسائي عند الدارقطني 2/ 242
Hadith Takhrij«منكر رواية القرقسائي عند الدارقطني 2/ 242»