Al-Fadl (his brother) was riding behind Messenger of Allah ﷺ and a woman from the tribe of Khath'am came and Al-Fadl started looking at her and she started looking at him. The Prophet ﷺ turned Al-Fadl's face to the other side. The woman said, "O Messenger of Allah ﷺ! The obligation of Hajj enjoined by Allah on His devotees has become due on my father and he is old and weak, and he cannot sit firm on the Mount; may I perform Hajj on his behalf?" The Prophet ﷺ replied, "Yes, you may." That happened during the Hajj-al-Wida (of the Prophet ﷺ ).  

كَانَ الْفَضْلُ رَدِيفَ رَسُولِ اللَّهِ ﷺ فَجَاءَتِ امْرَأَةٌ مِنْ خَثْعَمَ فَجَعَلَ الْفَضْلُ يَنْظُرُ إِلَيْهَا وَتَنْظُرُ إِلَيْهِ وَجَعَلَ النَّبِيُّ ﷺ يَصْرِفُ وَجْهَ الْفَضْلِ إِلَى الشِّقِّ الآخَرِ فَقَالَتْ يَا رَسُولَ اللَّهِ إِنَّ فَرِيضَةَ اللَّهِ عَلَى عِبَادِهِ فِي الْحَجِّ أَدْرَكَتْ أَبِي شَيْخًا كَبِيرًا لاَ يَثْبُتُ عَلَى الرَّاحِلَةِ أَفَأَحُجُّ عَنْهُ قَالَ نَعَمْ وَذَلِكَ فِي حَجَّةِ الْوَدَاعِ  

Al-Fadl was riding behind the Prophet ﷺ and a woman from the tribe of Khath'am came up. Al-Fadl started looking at her and she looked at him. The Prophet ﷺ turned Al-Fadl's face to the other side. She said, "My father has come under Allah's obligation of performing Hajj but he is a very old man and cannot sit properly on his Mount. Shall I perform Hajj on his behalf? The Prophet ﷺ replied in the affirmative. That happened during Hajjat-al-Wadaʿ of the Prophet ﷺ .  

جَاءَتِ امْرَأَةٌ مِنْ خَثْعَمَ عَامَ حَجَّةِ الْوَدَاعِ قَالَتْ يَا رَسُولَ اللَّهِ إِنَّ فَرِيضَةَ اللَّهِ عَلَى عِبَادِهِ فِي الْحَجِّ أَدْرَكَتْ أَبِي شَيْخًا كَبِيرًا لاَ يَسْتَطِيعُ أَنْ يَسْتَوِيَ عَلَى الرَّاحِلَةِ فَهَلْ يَقْضِي عَنْهُ أَنْ أَحُجَّ عَنْهُ قَالَ نَعَمْ