Sunan An-Nasa'i - سنن النسائي
24. The Book of Hajj - كتاب مناسك الحج
9) Chapter: Hajj On Behalf Of A Living Person Who Cannot Sit Firm In The Saddle
It was narrated from Ibn 'abbas that:
a woman from Khath'am asked the Prophet on the morning of the Day of Sacrifice: "O Messenger of Allah! The command of Allah to His slaves to perform Hajj has come, while my father is an old man and cannot sit firmly in the saddle. Can I perform Hajj on his behalf?" He said: "Yes. "
9) باب الْحَجِّ عَنِ الْحَىِّ الَّذِي، لاَ يَسْتَمْسِكُ عَلَى الرَّحْلِ
أَخْبَرَنَا قُتَيْبَةُ، قَالَ حَدَّثَنَا سُفْيَانُ، عَنِ الزُّهْرِيِّ، عَنْ سُلَيْمَانَ بْنِ يَسَارٍ، عَنِ ابْنِ عَبَّاسٍ، أَنَّ امْرَأَةً، مِنْ خَثْعَمَ سَأَلَتِ النَّبِيَّ صلى الله عليه وسلم غَدَاةَ جَمْعٍ فَقَالَتْ يَا رَسُولَ اللَّهِ فَرِيضَةُ اللَّهِ فِي الْحَجِّ عَلَى عِبَادِهِ أَدْرَكَتْ أَبِي شَيْخًا كَبِيرًا لاَ يَسْتَمْسِكُ عَلَى الرَّحْلِ أَفَأَحُجُّ عَنْهُ قَالَ . " نَعَمْ "