Jami` at-Tirmidhi 864
جامع الترمذي#864Sahihحَدَّثَنَا يُوسُفُ بْنُ عِيسَى، حَدَّثَنَا ابْنُ فُضَيْلٍ، عَنْ عَطَاءِ بْنِ السَّائِبِ، عَنْ كَثِيرِ بْنِ جُمْهَانَ، قَالَ رَأَيْتُ ابْنَ عُمَرَ يَمْشِي فِي السَّعْىِ فَقُلْتُ لَهُ أَتَمْشِي فِي السَّعْىِ بَيْنَ الصَّفَا وَالْمَرْوَةِ قَالَ لَئِنْ سَعَيْتُ لَقَدْ رَأَيْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم يَسْعَى وَلَئِنْ مَشَيْتُ لَقَدْ رَأَيْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم يَمْشِي وَأَنَا شَيْخٌ كَبِيرٌ . قَالَ أَبُو عِيسَى هَذَا حَدِيثٌ حَسَنٌ صَحِيحٌ . وَرُوِيَ عَنْ سَعِيدِ بْنِ جُبَيْرٍ عَنِ ابْنِ عُمَرَ نَحْوُهُ .
Kathir bin Jumhan said:"I saw Ibn Umar walking at the place of Sa'i so I said to him: 'Do you walk at the place of Sa'i between As-Safa and Al-Marwah?' He said: 'If I performed Sa'i, then it is because I saw the Messenger of Allah performing Sa'i there, and if I walked, then it is because I have seen the Messenger of Allah walking. And I am an old man
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
In-book reference: 9:57