أَخْبَرَنَا عُبَيْدُ بْنُ يَعِيشَ ، حَدَّثَنَا يُونُسُ ، عَنْ صَالِحِ بْنِ رُسْتُمَ الْمُزَنِيِّ ، عَنْ الْحَسَنِ ، عَنْ أَبِي مُوسَى رَضِيَ اللهُ عَنْهُ، أَنَّهُ قَالَ حِينَ قَدِمَ الْبَصْرَةَ :" بَعَثَنِي إِلَيْكُمْ عُمَرُ بْنُ الْخَطَّابِ رَضِيَ اللهُ عَنْهُ أُعَلِّمُكُمْ كِتَابَ رَبِّكُمْ، وَسُنَّتَكُمْ، وَأُنَظِّفُ طُرُقَكُمْ "

Ubaid bin Yaish told us, Yunus told us, on the authority of Salih bin Rustum Al-Muzani, on the authority of Al-Hasan, on the authority of Abu Musa, may God be pleased with him, that he said When he came to Basra: “Omar ibn al-Khattab, may God be pleased with him, sent me to you to teach you the Book of your Lord and your Sunnah, and to purify your ways.”