Sunan an-Nasa'i, Hadith 2977 ⓘ
It was narrated that Saeed bin Jubair said: "I saw Ibn Umar and he mentioned something similar, except he said: "and I am an old man."
أَخْبَرَنَا مُحَمَّدُ بْنُ رَافِعٍ، قَالَ حَدَّثَنَا عَبْدُ الرَّزَّاقِ، قَالَ أَنْبَأَنَا الثَّوْرِيُّ، عَنْ عَبْدِ الْكَرِيمِ الْجَزَرِيِّ، عَنْ سَعِيدِ بْنِ جُبَيْرٍ، قَالَ رَأَيْتُ ابْنَ عُمَرَ وَذَكَرَ نَحْوَهُ إِلاَّ أَنَّهُ قَالَ وَأَنَا شَيْخٌ، كَبِيرٌ .
also referenced under: Book 24, Hadith 0 (In-Book) & Volume 3, Book 24, Hadith 2980 (DarusSalam)