وَحَدَّثَنِي مَالِكٌ، عَنْ عَمِّهِ أَبِي سُهَيْلِ بْنِ مَالِكٍ، عَنْ أَبِيهِ، أَنَّهُ سَمِعَ عُثْمَانَ بْنَ عَفَّانَ، وَهُوَ يَخْطُبُ وَهُوَ يَقُولُ لاَ تُكَلِّفُوا الأَمَةَ غَيْرَ ذَاتِ الصَّنْعَةِ الْكَسْبَ فَإِنَّكُمْ مَتَى كَلَّفْتُمُوهَا ذَلِكَ كَسَبَتْ بِفَرْجِهَا وَلاَ تُكَلِّفُوا الصَّغِيرَ الْكَسْبَ فَإِنَّهُ إِذَا لَمْ يَجِدْ سَرَقَ وَعِفُّوا إِذْ أَعَفَّكُمُ اللَّهُ وَعَلَيْكُمْ مِنَ الْمَطَاعِمِ بِمَا طَابَ مِنْهَا ‏.‏

Malik related to me from his paternal uncle, Abu Suhayl ibnMalik, that his father heard Uthman ibn Affan say in a khutba, "Do notoblige the slave-girl to earn money unless she has a skill. When youoblige her to do that, she will earn money by prostitution. Do notoblige the child to earn money. If he does not find it, he will steal.Have integrity since Allah has integrity with you, and you must feedthem good food." Translation Not Available

Book Ref: Muwatta Imam Malik Book 54 Hadith 1808
Web Ref:  Muwatta Imam Malik Book 54 Hadith 42