Chapter on Khums and Spoils of War (Ghanaim)
Tahdhīb al-Aḥkām|Volume 4|Book 1|Chapter 35
فَأَمَّا مَا رَوَاهُ اَلْحَسَنُ بْنُ مَحْبُوبٍ عَنْ عَبْدِ اَللَّهِ بْنِ سِنَانٍ قَالَ سَمِعْتُ أَبَا عَبْدِ اَللَّهِ عَلَيْهِ اَلسَّلاَمُ يَقُولُ:» لَيْسَ اَلْخُمُسُ إِلاَّ فِي اَلْغَنَائِمِ خَاصَّةً«.
As for what al-Hasan ibn Mahbub narrated from Abdullah ibn Sinan, who said:
I heard Abu Abdillah عليه السلام, peace be upon him, saying: "The fifth (khums) is only in spoils specifically."
- Tahdhīb al-Aḥkām fī Sharḥ al-Muqniʿah, vol. 4, p. 161
- Ṣaḥīḥ al-Tahdhīb, p. 341