A man of Banu Sulaym named Khufaf asked Ibn Umar (may Allah be pleased with them both) what is meant by "three days during Hajj and seven when you return" [Surah al-Baqarah: 196]. He said: On returning home.
The Shaykh said: There is disagreement about his name: one view is this name, another is Abu al-Khufaf, and a third view is that his name is Hibban al-Sulami.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الحج / 8903