حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا عَبْدُ اللَّهِ بْنُ إِدْرِيسَ، عَنْ يَزِيدَ بْنِ أَبِي زِيَادٍ، عَنْ عَبْدِ اللَّهِ بْنِ الْحَارِثِ، قَالَ أَرْسَلَ مُعَاوِيَةُ إِلَى أُمِّ سَلَمَةَ فَانْطَلَقْتُ مَعَ الرَّسُولِ فَسَأَلَ أُمَّ سَلَمَةَ فَقَالَتْ إِنَّ رَسُولَ اللَّهِ ـ صلى الله عليه وسلم ـ بَيْنَمَا هُوَ يَتَوَضَّأُ فِي بَيْتِي لِلظُّهْرِ وَكَانَ قَدْ بَعَثَ سَاعِيًا وَكَثُرَ عِنْدَهُ الْمُهَاجِرُونَ وَكَانَ قَدْ أَهَمَّهُ شَأْنُهُمْ إِذْ ضُرِبَ الْبَابُ فَخَرَجَ إِلَيْهِ فَصَلَّى الظُّهْرَ ثُمَّ جَلَسَ يَقْسِمُ مَا جَاءَ بِهِ ‏.‏ قَالَتْ فَلَمْ يَزَلْ كَذَلِكَ حَتَّى الْعَصْرِ ‏.‏ ثُمَّ دَخَلَ مَنْزِلِي فَصَلَّى رَكْعَتَيْنِ ثُمَّ قَالَ ‏"‏ أَشْغَلَنِي أَمْرُ السَّاعِي أَنْ أُصَلِّيَهُمَا بَعْدَ الظُّهْرِ فَصَلَّيْتُهُمَا بَعْدَ الْعَصْرِ ‏"‏ ‏.‏

It wasnarrated that ‘Abdullah bin Harith said: “Mu’awiyah sent wordto Umm Salamah, and I went with his envoy who put the question to UmmSalamah. She said: ‘While the Messenger of Allah (PBUH) wasperformingablution for the Zuhr in my house and he had sent a Sa’i,*theMuhajirun gathered around him in large numbers, and he was busydealing with them. When a knock on the door came, he went out andperformed the Zuhr, then he sat and distributed what had been broughtto him.’ She said: ‘He continued doing that until the ‘Asr.Then hecame into my house and performed two Rak’ah. Then he said:“The matterof the Sa’i kept me from praying them after Zuhr, soI prayed themafter ‘Asr.” Translation Not Available

Book Ref: Sunan Ibn Majah Book 5 Hadith 1159
Web Ref:  Sunan Ibn Majah Vol 1 Book 5 Hadith 1159