Thawban reported,

The Messenger of Allah ﷺ slaughtered his sacrificial animal, then said, "Thawban, prepare the meat of this." I kept feeding him from it until he arrived in Medina.In another narration, it adds, "during the Farewell Pilgrimage."

Azami 7227

Sahih

عن ثوبان قال

ذبح رسول الله ﷺ ضحيته ثم قال: يا ثوبان أصلح لحم هذه فلم أزل أطعمه منها حتى قدم المدينة. وزاد في رواية: في حجة الوداع.

الأعظمي 7227صحيح
Contents
Reference
Commentary
Ayat
Collection
Jami al-Kamil
Book
Sacrificial animals
Section
Concession to eat the meat of sacrificial animals and store it beyond three days
Numbering
Jami al-Kamil 7227 (2nd edition)
Azami 7227