Chapter on Khums and Spoils of War (Ghanaim)
Tahdhīb al-Aḥkām|Volume 4|Book 1|Chapter 35
أَحْمَدُ بْنُ مُحَمَّدٍ عَنِ اَلْحَسَنِ بْنِ مَحْبُوبٍ عَنْ أَبِي أَيُّوبَ عَنْ مُحَمَّدِ بْنِ مُسْلِمٍ قَالَ: سَأَلْتُ أَبَا جَعْفَرٍ عَلَيْهِ اَلسَّلاَمُ عَنِ اَلْمَلاَّحَةِ فَقَالَ» وَ مَا اَلْمَلاَّحَةُ« فَقَالَ أَرْضٌ سَبِخَةٌ مَالِحَةٌ يَجْتَمِعُ فِيهَا اَلْمَاءُ فَيَصِيرُ مِلْحاً فَقَالَ» هَذَا اَلْمَعْدِنُ فِيهِ اَلْخُمُسُ« فَقُلْتُ وَاَلْكِبْرِيتُ وَاَلنِّفْطُ يُخْرَجُ مِنَ اَلْأَرْضِ قَالَ فَقَالَ» هَذَا وَأَشْبَاهُهُ فِيهِ اَلْخُمُسُ«.
Ahmad ibn Muhammad, from al-Hasan ibn Mahbub, from Abu Ayyub, from Muhammad ibn Muslim:
I (narrator) asked Abu Ja’far عليه السلام, peace be upon him, about ‘the salt-marsh (mallahah).’ Imam عليه السلام said: "And what is the salt-marsh?" So he (narrator) said: “It is barren saline land (ard sabikha) and salty, in which water gathers and then becomes salt.” Imam عليه السلام said: "This is a mineral (ma'din); in it is the fifth (khums)." So I (narrator) asked: “And sulphur and oil which are extracted from the earth?” He (narrator) said: “Imam عليه السلام said, ‘This and its likes, in them is the fifth (khums).’"
- Tahdhīb al-Aḥkām fī Sharḥ al-Muqniʿah, vol. 4, p. 157
- Ṣaḥīḥ al-Tahdhīb, p. 340