Muwatta Malik, Book 20, Hadith 915 (In-Book)

Yahya related to me from Malik from Nafi from Abdullah ibn Umar that Umar ibn al-Khattab said, "No-one doing hajj should spend the nights of Mina beyond al-Aqaba."

وَحَدَّثَنِي عَنْ مَالِكٍ، عَنْ نَافِعٍ، عَنْ عَبْدِ اللَّهِ بْنِ عُمَرَ، أَنَّ عُمَرَ بْنَ الْخَطَّابِ، قَالَ لاَ يَبِيتَنَّ أَحَدٌ مِنَ الْحَاجِّ لَيَالِيَ مِنًى مِنْ وَرَاءِ الْعَقَبَةِ ‏.‏

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also referenced under: Book 20, Hadith 218 (USC-MSA)