Hadithcore
Sahih Muslim, 1259 c
sahih

Abdullah (b. 'Umar) reported that whenever Allah's Messenger (ﷺ) entered Mecca, he got down at Dhi Tuwa and spend the night there until he observed the dawn prayer. And Allah's Messenger (ﷺ) observed this prayer on a rough hillock, and not in the mosque which had been then built there, but to the lower side of it (the mosque) on a hillock.

وَحَدَّثَنَا مُحَمَّدُ بْنُ إِسْحَاقَ الْمُسَيَّبِيُّ، حَدَّثَنِي أَنَسٌ، - يَعْنِي ابْنَ عِيَاضٍ - عَنْ مُوسَى بْنِ عُقْبَةَ، عَنْ نَافِعٍ، أَنَّ عَبْدَ اللَّهِ، حَدَّثَهُ أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم كَانَ يَنْزِلُ بِذِي طَوًى وَيَبِيتُ بِهِ حَتَّى يُصَلِّيَ الصُّبْحَ حِينَ يَقْدَمُ مَكَّةَ وَمُصَلَّى رَسُولِ اللَّهِ صلى الله عليه وسلم ذَلِكَ عَلَى أَكَمَةٍ غَلِيظَةٍ لَيْسَ فِي الْمَسْجِدِ الَّذِي بُنِيَ ثَمَّ وَلَكِنْ أَسْفَلَ مِنْ ذَلِكَ عَلَى أَكَمَةٍ غَلِيظَةٍ ‏.‏

References2 variants
In-Book Reference
Book 15, Hadith 252
USC-MSA web (English) reference
Book 7, Hadith 2891 (deprecated numbering scheme)
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Compare isnād across 2 related chains →