A woman from the tribe of Juhaina came to the Prophet ﷺ and said, "My mother had vowed to perform Hajj but she died before performing it. May I perform Hajj on my mother's behalf?" The Prophet ﷺ replied, "Perform Hajj on her behalf. Had there been a debt on your mother, would you have paid it or not? So, pay Allah's debt as He has more right to be paid."  

أَنَّ امْرَأَةً مِنْ جُهَيْنَةَ جَاءَتْ إِلَى النَّبِيِّ ﷺ فَقَالَتْ إِنَّ أُمِّي نَذَرَتْ أَنْ تَحُجَّ فَلَمْ تَحُجَّ حَتَّى مَاتَتْ أَفَأَحُجُّ عَنْهَا قَالَ نَعَمْ حُجِّي عَنْهَا أَرَأَيْتِ لَوْ كَانَ عَلَى أُمِّكِ دَيْنٌ أَكُنْتِ قَاضِيَةً اقْضُوا اللَّهَ فَاللَّهُ أَحَقُّ بِالْوَفَاءِ