It was narrated from 'Abdullah bin 'Abbas:

"Al-Fadl bin 'Abbas was riding behind the Messenger of Allah when a woman from Khath'am came and asked him a question. Al-Fadl started looking at her and she at him, and the Messenger of Allah turned Al-Fadl's face to the other side. She said: 'O Messenger of Allah! The command of Allah has come for His slaves to perform Hajj, but my father is an old man and cannot sit firmly in the saddle; should I perform Hajj on his behalf ?, He said: 'Yes That happened during the Farwell Pilgrimage.''(Shih)

أَخْبَرَنَا مُحَمَّدُ بْنُ سَلَمَةَ، وَالْحَارِثُ بْنُ مِسْكِينٍ، قِرَاءَةً عَلَيْهِ وَأَنَا أَسْمَعُ، عَنِ ابْنِ الْقَاسِمِ، قَالَ حَدَّثَنِي مَالِكٌ، عَنِ ابْنِ شِهَابٍ، عَنْ سُلَيْمَانَ بْنِ يَسَارٍ، عَنْ عَبْدِ اللَّهِ بْنِ عَبَّاسٍ، قَالَ كَانَ الْفَضْلُ بْنُ عَبَّاسٍ رَدِيفَ رَسُولِ اللَّهِ صلى الله عليه وسلم فَجَاءَتْهُ امْرَأَةٌ مِنْ خَثْعَمَ تَسْتَفْتِيهِ وَجَعَلَ الْفَضْلُ يَنْظُرُ إِلَيْهَا وَتَنْظُرُ إِلَيْهِ وَجَعَلَ رَسُولُ اللَّهِ صلى الله عليه وسلم يَصْرِفُ وَجْهَ الْفَضْلِ إِلَى الشِّقِّ الآخَرِ فَقَالَتْ يَا رَسُولَ اللَّهِ إِنَّ فَرِيضَةَ اللَّهِ فِي الْحَجِّ عَلَى عِبَادِهِ أَدْرَكَتْ أَبِي شَيْخًا كَبِيرًا لاَ يَسْتَطِيعُ أَنْ يَثْبُتَ عَلَى الرَّاحِلَةِ أَفَأَحُجُّ عَنْهُ قَالَ ‏

‏ نَعَمْ ‏

‏ ‏.‏ وَذَلِكَ فِي حَجَّةِ الْوَدَاعِ ‏.‏