وَحَدَّثَنِي مَالِكٌ، عَنْ نَافِعٍ، أَنَّ عَبْدَ اللَّهِ بْنَ عُمَرَ، كَانَ إِذَا دَنَا مِنْ مَكَّةَ بَاتَ بِذِي طُوًى بَيْنَ الثَّنِيَّتَيْنِ حَتَّى يُصْبِحَ ثُمَّ يُصَلِّي الصُّبْحَ ثُمَّ يَدْخُلُ مِنَ الثَّنِيَّةِ الَّتِي بِأَعْلَى مَكَّةَ وَلاَ يَدْخُلُ إِذَا خَرَجَ حَاجًّا أَوْ مُعْتَمِرًا حَتَّى يَغْتَسِلَ قَبْلَ أَنْ يَدْخُلَ مَكَّةَ إِذَا دَنَا مِنْ مَكَّةَ بِذِي طُوًى وَيَأْمُرُ مَنْ مَعَهُ فَيَغْتَسِلُونَ قَبْلَ أَنْ يَدْخُلُوا ‏.‏

Malik related to me from Nafi that Abdullah ibn Umar would spendthe night between the two trails in the valley of Dhu Tuwa when he wasapproaching Makka. Then he would pray subh, and after that he wouldenter Makka by the trail which is at the highest part of Makka. Hewould never enter Makka, if he was coming for hajj or umra, withoutdoing ghusl beforehand when he was near Makka at Dhu Tuwa, and hewould tell whoever was with him to do likewise. Translation Not Available

Book reference: Muwatta Imam Malik Book 20 Hadith 713
Web reference: Muwatta Imam Malik Book 20 Hadith 6