Sunan an-Nasa'i, Volume 6, Book 49, Hadith 5397 (DarusSalam) ⓘ
It was narrated from Sulaiman bin Yasar, who narrated from Al-Fadl bin 'Abbas, who said: "A man came to the Prophet [SAW] and said: 'O Prophet of Allah, my father is an old man and cannot perform Hajj. If I put him on a mount he cannot sit firm. Can I perform Hajj on his behalf?' He said: 'Perform Hajj on behalf of your father.'"
أَخْبَرَنَا أَبُو دَاوُدَ، قَالَ حَدَّثَنَا الْوَلِيدُ بْنُ نَافِعٍ، قَالَ حَدَّثَنَا شُعْبَةُ، عَنْ يَحْيَى بْنِ أَبِي إِسْحَاقَ، قَالَ سَمِعْتُ سُلَيْمَانَ بْنَ يَسَارٍ، يُحَدِّثُهُ عَنِ الْفَضْلِ بْنِ الْعَبَّاسِ، قَالَ جَاءَ رَجُلٌ إِلَى النَّبِيِّ صلى الله عليه وسلم فَقَالَ يَا نَبِيَّ اللَّهِ إِنَّ أَبِي شَيْخٌ كَبِيرٌ لاَ يَسْتَطِيعُ الْحَجَّ وَإِنْ حَمَلْتُهُ لَمْ يَسْتَمْسِكْ أَفَأَحُجَّ عَنْهُ قَالَ " حُجَّ عَنْ أَبِيكَ " . قَالَ أَبُو عَبْدِ الرَّحْمَنِ سُلَيْمَانُ لَمْ يَسْمَعْ مِنَ الْفَضْلِ بْنِ الْعَبَّاسِ.
also referenced under: Hadith 5395 (Reference) & Book 49, Hadith 17 (In-Book)