he heard the Messenger of Allah say "Whoever suffers a leg injury of breaks his leg, he has exited Ihram, but he has to perform another Hajj." I asked Ibn Abbas and Abu Hurarirah about that and he said "He spoke the truth." (Using translation from Nasāʾī 2860)
أَنَّهُ سَمِعَ رَسُولَ اللهِ ﷺ يَقُولُ «مَنْ عَرِجَ أَوْ كُسِرَ فَقَدْ حَلَّ وَعَلَيْهِ حَجَّةٌ أُخْرَى» فَسَأَلْتُ ابْنَ عَبَّاسٍ وَأَبَا هُرَيْرَةَ عَنْ ذَلِكَ فَقَالَا صَدَقَ