It was narrated from Sumait, from ‘Imran bin Husain who said: “The Messenger of Allah (ﷺ) sent us on a campaign, and a Muslim man attacked an idolater man.” And he mentioned the Hadith and added: “And the earth cast him out. The Prophet (ﷺ) was told about that and he said: ‘The earth accepts those who are worse than him, but Allah wanted to show you how great is the sanctity of La ilaha illallah.’”
Source: sunnah.com
Other translations
Arabic
حَدَّثَنَا إِسْمَاعِيلُ بْنُ حَفْصٍ الأُبُلِّيُّ، حَدَّثَنَا حَفْصُ بْنُ غِيَاثٍ، عَنْ عَاصِمٍ، عَنِ السُّمَيْطِ، عَنْ عِمْرَانَ بْنِ الْحُصَيْنِ، قَالَ بَعَثَنَا رَسُولُ اللَّهِ ـ صلى الله عليه وسلم ـ فِي سَرِيَّةٍ فَحَمَلَ رَجُلٌ مِنَ الْمُسْلِمِينَ عَلَى رَجُلٍ مِنَ الْمُشْرِكِينَ فَذَكَرَ الْحَدِيثَ وَزَادَ فِيهِ فَنَبَذَتْهُ الأَرْضُ فَأُخْبِرَ النَّبِيُّ ـ صلى الله عليه وسلم ـ وَقَالَ " إِنَّ الأَرْضَ لَتَقْبَلُ مَنْ هُوَ أَشَرُّ مِنْهُ وَلَكِنَّ اللَّهَ أَحَبَّ أَنْ يُرِيَكُمْ تَعْظِيمَ حُرْمَةِ لاَ إِلَهَ إِلاَّ اللَّهُ " .
sunnah.com