Al-Kāfi

Hadith 1928
marriagewomenwarfare-jihad
4- عِدَّةٌ مِنْ أَصْحَابِنَا عَنْ سَهْلِ بْنِ زِيَادٍ عَنْ عَلِيِّ بْنِ حَسَّانَ عَنْ مُوسَى بْنِ بَكْرٍ عَنْ أَبِي إِبْرَاهِيمَ (عَلَيْهِ السَّلام) قَالَ جِهَادُ الْمَرْأَةِ حُسْنُ التَّبَعُّلِ.
4. A number of our people have narrated from Sahl ibn Ziyad from Ali ibn Hassan from Musa ibn Bakr who has said the following: “Abu Ibrahim (a.s.), has said, ‘Jihad (struggle for the cause of Allah) of a woman is her living a proper spousal life.’”
Source: Shaykh Muḥammad b. Yaʿqūb al-Kulaynī