Messenger of Allah, there is an obligation from Allah upon His servants in regard to Hajj. (But) my father is an aged man; he is incapable of riding safely. May I perform Hajj on his behalf? He said: Yes. It was during the Farewell Pilgrimage.  

أَنَّهُ قَالَ كَانَ الْفَضْلُ بْنُ عَبَّاسٍ رَدِيفَ رَسُولِ اللَّهِ ﷺ فَجَاءَتْهُ امْرَأَةٌ مِنْ خَثْعَمَ تَسْتَفْتِيهِ فَجَعَلَ الْفَضْلُ يَنْظُرُ إِلَيْهَا وَتَنْظُرُ إِلَيْهِ فَجَعَلَ رَسُولُ اللَّهِ ﷺ يَصْرِفُ وَجْهَ الْفَضْلِ إِلَى الشِّقِّ الآخَرِ قَالَتْ يَا رَسُولَ اللَّهِ إِنَّ فَرِيضَةَ اللَّهِ عَلَى عِبَادِهِ فِي الْحَجِّ أَدْرَكَتْ أَبِي شَيْخًا كَبِيرًا لاَ يَسْتَطِيعُ أَنْ يَثْبُتَ عَلَى الرَّاحِلَةِ أَفَأَحُجُّ عَنْهُ قَالَ نَعَمْ وَذَلِكَ فِي حَجَّةِ الْوَدَاعِ  

Messenger of Allah, my father is very old. There is an old obligation of Hajj upon him from Allah, but he is not capable of sitting on the back of the camel. Thereupon Allah's Apostle ﷺ said: Perform Hajj on his behalf.  

يَا رَسُولَ اللَّهِ إِنَّ أَبِي شَيْخٌ كَبِيرٌ عَلَيْهِ فَرِيضَةُ اللَّهِ فِي الْحَجِّ وَهُوَ لاَ يَسْتَطِيعُ أَنْ يَسْتَوِيَ عَلَى ظَهْرِ بَعِيرِهِ فَقَالَ النَّبِيُّ ﷺ فَحُجِّي عَنْهُ