وَحَدَّثَنِي عَنْ مَالِكٍ، عَنْ إِسْحَاقَ بْنِ عَبْدِ اللَّهِ بْنِ أَبِي طَلْحَةَ، عَنْ أَنَسِ بْنِ مَالِكٍ، أَنَّهُ قَالَ رَأَيْتُ عُمَرَ بْنَ الْخَطَّابِ - وَهُوَ يَوْمَئِذٍ أَمِيرُ الْمُؤْمِنِينَ - يُطْرَحُ لَهُ صَاعٌ مِنْ تَمْرٍ فَيَأْكُلُهُ حَتَّى يَأْكُلَ حَشَفَهَا ‏.‏

Yahya related to me from Malik from Ishaq ibn Abdullah ibn AbiTalha that Anas ibn Malik said, "I saw Umar ibn al-Khattab when he wasamir al-muminin being given a sa of dates, and he ate all of them,even the inferior ones." Translation Not Available

Book Ref: Muwatta Imam Malik Book 49 Hadith 1703
Web Ref:  Muwatta Imam Malik Book 49 Hadith 30