It is narrated from Sayyiduna Buraydah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "The sanctity of the women of the mujahidin over those who stay behind is like (the sanctity of) their own mothers. And whoever among those who stay behind takes the place of one of the mujahidin among his family and betrays him concerning them, he will be made to stand before him (the mujahid) on the Day of Resurrection, and it will be said to him: 'This man betrayed you concerning your family, so take from his deeds whatever you wish.'"
Hadith Referenceالمعجم الكبير للطبراني / باب الباء / 1153