Al-Kāfi - Volume 5 > Using Labors of Al-‘Aluj (infidel) for Free
Hadith #2

2- عَلِيُّ بْنُ إِبْرَاهِيمَ عَنْ أَبِيهِ عَنِ ابْنِ أَبِي عُمَيْرٍ عَنْ جَمِيلِ بْنِ دَرَّاجٍ عَنْ عَلِيٍّ الأزْرَقِ قَالَ سَمِعْتُ أَبَا عَبْدِ اللهِ (عَلَيْهِ السَّلام) يَقُولُ وَصَّى رَسُولُ اللهِ (صَلَّى اللهُ عَلَيْهِ وَآلِه) عَلِيّاً (عَلَيْهِ السَّلام) عِنْدَ مَوْتِهِ فَقَالَ يَا عَلِيُّ لا يُظْلَمُ الْفَلاحُونَ بِحَضْرَتِكَ وَلا يَزْدَادُ عَلَى أَرْضٍ وَضَعْتَ عَلَيْهَا وَلا سُخْرَةَ عَلَى مُسْلِمٍ يَعْنِي الأجِيرَ.

2. Ali ibn Ibrahim has narrated from his father from ibn abu ‘Umayr from Jamil ibn Darraj from Ali al-Azraq who has said the following: “I once heard abu ‘Abd Allah, ‘Alayhi al-Salam, saying, ‘The Messenger of Allah, O Allah, grant compensation to Muhammad and his family worthy of their services to Your cause, said, when he was about to leave this world to Ali, ‘Alayhi al-Salam, “O Ali, you must not allow that farmers be oppressed before you; and you must not allow taxes on land to increase and you must not allow free labor on a Muslim” (meaning free labor when he is hired).”’