Hadith 516820
Chapter 49: The Description of the Prophet, may Allah Bless Him and Grant Him Peace - كتاب صفة النبى صلى الله عليه وسلم
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 Abi Talha that Anas ibn Malik said, "I saw Umar ibn al-Khattab when he was amir al-muminin being given a sa of dates, and he ate all of them, even the inferior ones."
Reference Muwatta Malik 516820
USC-MSA web (English) reference : Book 49, Hadith 30