Hadithcore
Sahih Muslim, 1199 e
sahih

This hadith has been narrated on the authority of Ibn 'Umar through be upon him) as saying:

Five (are the beasts) in killing which or their being killed in the precinct of the Ka'ba there is no sin." The rest of the hadith is the same.

وَحَدَّثَنِيهِ فَضْلُ بْنُ سَهْلٍ، حَدَّثَنَا يَزِيدُ بْنُ هَارُونَ، أَخْبَرَنَا مُحَمَّدُ بْنُ إِسْحَاقَ، عَنْ نَافِعٍ، وَعُبَيْدِ اللَّهِ بْنِ عَبْدِ اللَّهِ، عَنِ ابْنِ عُمَرَ، - رضى الله عنهما - قَالَ سَمِعْتُ النَّبِيَّ صلى الله عليه وسلم يَقُولُ ‏

‏ خَمْسٌ لاَ جُنَاحَ فِي قَتْلِ مَا قُتِلَ مِنْهُنَّ فِي الْحَرَمِ ‏

‏ ‏.‏ فَذَكَرَ بِمِثْلِهِ‏.

References2 variants
In-Book Reference
Book 15, Hadith 85
USC-MSA web (English) reference
Book 7, Hadith 2730 (deprecated numbering scheme)