Sahih Muslim 1897aBook 33, Hadith 203
وَحَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا وَكِيعٌ، عَنْ سُفْيَانَ، عَنْ عَلْقَمَةَ بْنِ مَرْثَدٍ، عَنْ سُلَيْمَانَ بْنِ بُرَيْدَةَ، عَنْ أَبِيهِ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " حُرْمَةُ نِسَاءِ الْمُجَاهِدِينَ عَلَى الْقَاعِدِينَ كَحُرْمَةِ أُمَّهَاتِهِمْ وَمَا مِنْ رَجُلٍ مِنَ الْقَاعِدِينَ يَخْلُفُ رَجُلاً مِنَ الْمُجَاهِدِينَ فى أَهْلِهِ فَيَخُونُهُ فِيهِمْ إِلاَّ وُقِفَ لَهُ يَوْمَ الْقِيَامَةِ فَيَأْخُذُ مِنْ عَمَلِهِ مَا شَاءَ فَمَا ظَنُّكُمْ " .
The sanctity of the wives of Mujahids is like the sanctity of their mothers for those who sit at home (i. e do not go out for Jihad). Anyone who stays behind looking after the family of a Mujahid and betrays his trust will be made to stand on the Day of judgment before the Mujahid who will take away from his meritorious deeds whatever he likes. So what do you think (will he leave anything)?