Al-Kāfi - Volume 7 > Testimony of Woman for her Husband and the Testimony of Man for his Wife
Hadith #2

2- مُحَمَّدُ بْنُ يَحْيَى عَنْ أَحْمَدَ بْنِ مُحَمَّدِ بْنِ عِيسَى عَنِ ابْنِ مَحْبُوبٍ عَنْ هِشَامِ بْنِ سَالِمٍ عَنْ عَمَّارِ بْنِ مَرْوَانَ قَالَ سَأَلْتُ أَبَا عَبْدِ اللهِ (عَلَيْهِ السَّلام) أَوْ قَالَ سَأَلَهُ بَعْضُ أَصْحَابِنَا عَنِ الرَّجُلِ يَشْهَدُ لامْرَأَتِهِ قَالَ إِذَا كَانَ خَيِّراً جَازَتْ شَهَادَتُهُ لامْرَأَتِهِ.

2. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad ibn ‘Isa from ibn Mahbub from Hisham ibn Salim from ‘Ammar ibn Marwan who has narrated the following: “I or a certain persons of our people asked abu ‘Abd Allah, ‘Alayhi al-Salam, about the case of a man who presents testimony for his wife. He (the Imam) said, ‘If it is for a good cause it is permissible to testify for one’s wife.’”