عَنْ عَائِشَةَ رَضِيَ اللَّهُ عَنْهَا أَنَّ مُكَاتَبًا لَهَا دَخَلَ عَلَيْهَا بِبَقِيَّةِ مُكَاتَبَتِهِ فَقَالَتْ لَهُ أَنْتَ غَيْرُ دَاخِلٍ عَلَيَّ غَيْرَ مَرَّتِكَ هَذِهِ فَعَلَيْكَ بِالْجِهَادِ فِي سَبِيلِ اللَّهِ فَإِنِّي سَمِعْتُ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ يَقُولُ مَا خَالَطَ قَلْبَ امْرِئٍ مُسْلِمٍ رَهَجٌ فِي سَبِيلِ اللَّهِ إِلَّا حَرَّمَ اللَّهُ عَلَيْهِ النَّارَ
It is narrated from Sayyida Aisha (may Allah be pleased with her) that her mukatab (contracted slave) came to her with the remaining portion of his contract. She said: After this, do not enter upon me; adhere to jihad in the way of Allah, for I heard the Messenger of Allah (peace and blessings be upon him) say: Whoever’s heart is touched by the dust of Allah’s path, Allah will make the Fire forbidden for him.