Al-Kāfi - Volume 5 > Using the Properties of Orphans in Business and Lending
Hadith #4

4- عِدَّةٌ مِنْ أَصْحَابِنَا عَنْ سَهْلِ بْنِ زِيَادٍ عَنْ عَلِيِّ بْنِ أَسْبَاطٍ عَنْ أَسْبَاطِ بْنِ سَالِمٍ قَالَ سَأَلْتُ أَبَا عَبْدِ اللهِ (عَلَيْهِ السَّلام) فَقُلْتُ أَمَرَنِي أَخِي أَنْ أَسْأَلَكَ عَنْ مَالِ يَتِيمٍ فِي حَجْرِهِ يَتَّجِرُ بِهِ فَقَالَ إِنْ كَانَ لأخِيكَ مَالٌ يُحِيطُ بِمَالِ الْيَتِيمِ إِنْ تَلِفَ أَوْ أَصَابَهُ شَيْ‏ءٌ غَرِمَهُ لَهُ وَإِلا فَلا يَتَعَرَّضْ لِمَالِ الْيَتِيمِ.

4. A number of our people have narrated from Sahl ibn Ziyad from Ali ibn Asbat from Asbat ibn Salim who has said the following: “I once said to abu ‘Abd Allah, ‘Alayhi al-Salam, that my brother has told me to ask you about the assets of an orphan who is under his (my brother’s) guardianship and he uses the assets of the orphan in business. He (the Imam) said, ‘If your brother’s assets are sufficient to cover the assets of the orphan in case it is destroyed, it is permissible; otherwise, it is not permissible and he must not hassle with the assets of the orphan.’”