حَدَّثَنِي يَحْيَى، عَنْ مَالِكٍ، عَنْ زَيْدِ بْنِ أَسْلَمَ، أَنَّ رَجُلاً، جَاءَ إِلَى عُمَرَ بْنِ الْخَطَّابِ فَقَالَ يَا أَمِيرَ الْمُؤْمِنِينَ إِنِّي أَصَبْتُ جَرَادَاتٍ بِسَوْطِي وَأَنَا مُحْرِمٌ ‏.‏ فَقَالَ لَهُ عُمَرُ أَطْعِمْ قَبْضَةً مِنْ طَعَامٍ ‏.‏

Yahya related to me from Malik from Zayd ibn Aslam that a mancame to Umar ibn al-Khattab and said, "Amir al-muminin, I killed somelocusts with my whip when I was in ihram," and Umar said to him, "Givea handful of food." Translation Not Available

Book Ref: Muwatta Imam Malik Book 20 Hadith 941
Web Ref:  Muwatta Imam Malik Book 20 Hadith 244