Muwatta Malik, Book 20, Hadith 203 (USC-MSA)

Yahya related to me from Malik from Ibn Shihab that Salim ibn Abdullah said, ''Abd al-Malik ibn Marwan wrote to al-Hajjaj ibn Yusuf telling him not to disagree with Abdullah ibn Umar about anything to do with the hajj. Then, when the day of Arafa came Abdullah ibn Umar went to him just after noon, and I went with him. He called out to him outside his tent, 'Where is this man?' and a-lHajjaj came out to him, wearing a blanket dyed with safflower, and said to him, 'What's up with you, Abu Abd ar-Rahman?' He said, 'Hurry up, if you want to follow the sunna.' Al-Hajjaj said, 'At this hour?' and he said, 'Yes.' Al-Hajjaj said, 'Wait until I have poured some water over myself, and then I will come out.' So Abdullah dismounted and waited until al- Hajjaj came out. He passed between me and my father and I said to him, 'If you want to accord with the sunna today, then make the khutba short, do not delay the prayer and do the prayer quickly.' Then he began looking at Abdullah ibn Umar to see if he would say the same thing, and when Abdullah saw that, he said, 'What Salim is saying is true.' " 20.64 Doing the Prayer at Mina on the Eighth Day of Dhu-l-Hijja, and the Jumua at Mina and Arafa

وَحَدَّثَنِي عَنْ مَالِكٍ، عَنِ ابْنِ شِهَابٍ، عَنْ سَالِمِ بْنِ عَبْدِ اللَّهِ، أَنَّهُ قَالَ كَتَبَ عَبْدُ الْمَلِكِ بْنُ مَرْوَانَ إِلَى الْحَجَّاجِ بْنِ يُوسُفَ أَنْ لاَ تُخَالِفَ عَبْدَ اللَّهِ بْنَ عُمَرَ فِي شَىْءٍ مِنْ أَمْرِ الْحَجِّ ‏.‏ قَالَ فَلَمَّا كَانَ يَوْمُ عَرَفَةَ جَاءَهُ عَبْدُ اللَّهِ بْنُ عُمَرَ حِينَ زَالَتِ الشَّمْسُ وَأَنَا مَعَهُ فَصَاحَ بِهِ عِنْدَ سُرَادِقِهِ أَيْنَ هَذَا فَخَرَجَ عَلَيْهِ الْحَجَّاجُ وَعَلَيْهِ مِلْحَفَةٌ مُعَصْفَرَةٌ فَقَالَ مَا لَكَ يَا أَبَا عَبْدِ الرَّحْمَنِ فَقَالَ الرَّوَاحَ إِنْ كُنْتَ تُرِيدُ السُّنَّةَ ‏.‏ فَقَالَ أَهَذِهِ السَّاعَةَ قَالَ نَعَمْ ‏.‏ قَالَ فَأَنْظِرْنِي حَتَّى أُفِيضَ عَلَىَّ مَاءً ثُمَّ أَخْرُجَ ‏.‏ فَنَزَلَ عَبْدُ اللَّهِ حَتَّى خَرَجَ الْحَجَّاجُ فَسَارَ بَيْنِي وَبَيْنَ أَبِي فَقُلْتُ لَهُ إِنْ كُنْتَ تُرِيدُ أَنْ تُصِيبَ السُّنَّةَ الْيَوْمَ فَاقْصُرِ الْخُطْبَةَ وَعَجِّلِ الصَّلاَةَ - قَالَ - فَجَعَلَ يَنْظُرُ إِلَى عَبْدِ اللَّهِ بْنِ عُمَرَ كَيْمَا يَسْمَعَ ذَلِكَ مِنْهُ فَلَمَّا رَأَى ذَلِكَ عَبْدُ اللَّهِ قَالَ صَدَقَ سَالِمٌ ‏.‏

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also referenced under: Book 20, Hadith 902 (In-Book)