"Whoever breaks his leg or suffers a leg injury, then he has exited Ihram, but he has to perform another Hajj." I asked Ibn 'Abbas and Abu Hurairah and the said: "He spoke the thurth." And in his narration (one of the narrators) shuaib said: "He has to perfom Hajj the following year."
Sunan an-Nasa'i Book 24, Hadith 244
← Previous Hadith 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."

Sunan an-Nasa'i Book 24, Hadith 243 Next Hadith → the Messenger of Allah used to dismount at Dhu Tuwa and stay there overnight unitl he prayed Subh when he was approaching Makkah. The place where the Messenger of Allah prayed was on top of the big hillock and not in the Masjid that was built later on, but it was lower than that, on top of the big hillock.

Sunan an-Nasa'i Book 24, Hadith 245