Muwatta Malik, Book 20, Hadith 941 (In-Book)

Yahya related to me from Malik from Zayd ibn Aslam that a man came to Umar ibn al-Khattab and said, "Amir al-muminin, I killed some locusts with my whip when I was in ihram," and Umar said to him, "Give a handful of food."

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 ‏.‏

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also referenced under: Book 20, Hadith 244 (USC-MSA)