The Messenger of Allah ﷺ ordered me (to learn the writing of the Jews), so I learnt for him the writing of the Jews. He said: I swear by Allah, I do not trust Jews in respect of writing for me. So I learnt it, and only a fortnight passed before I mastered it. I would write for him when he wrote (to them), and read to him when something was written to him.  

زَيْدُ بْنُ ثَابِتٍ أَمَرَنِي رَسُولُ اللَّهِ ﷺ فَتَعَلَّمْتُ لَهُ كِتَابَ يَهُودَ وَقَالَ إِنِّي وَاللَّهِ مَا آمَنُ يَهُودَ عَلَى كِتَابِي فَتَعَلَّمْتُهُ فَلَمْ يَمُرَّ بِي إِلاَّ نِصْفُ شَهْرٍ حَتَّى حَذَقْتُهُ فَكُنْتُ أَكْتُبُ لَهُ إِذَا كَتَبَ وَأَقْرَأُ لَهُ إِذَا كُتِبَ إِلَيْهِ  

"The Messenger of Allah ﷺ ordered me to learn some statements from writings of the Jews for him, and he said: 'For indeed by Allah! I do no trust the Jews with my letters.'" He said: "Half a month did not pass before I learned it, when he ﷺ wanted to write to the Jews I would write it to them, and when they wrote to him I would read their letters to him."  

أَمَرَنِي رَسُولُ اللَّهِ ﷺ أَنْ أَتَعَلَّمَ لَهُ كَلِمَاتِ كِتَابِ يَهُودَ قَالَ إِنِّي وَاللَّهِ مَا آمَنُ يَهُودَ عَلَى كِتَابٍ قَالَ فَمَا مَرَّ بِي نِصْفُ شَهْرٍ حَتَّى تَعَلَّمْتُهُ لَهُ قَالَ فَلَمَّا تَعَلَّمْتُهُ كَانَ إِذَا كَتَبَ إِلَى يَهُودَ كَتَبْتُ إِلَيْهِمْ وَإِذَا كَتَبُوا إِلَيْهِ قَرَأْتُ لَهُ كِتَابَهُمْ  

The Messenger of Allah ﷺ ordered me (to learn the writing of the Jews), so I learnt for him the writing of the Jews. He said: I swear by Allah, I do not trust Jews in respect of writing for me. So I learnt it, and only a fortnight passed before I mastered it. I would write for him when he wrote (to them), and read to him when something was written to him. (Using translation from Abū Dāʾūd 3645)   

قَالَ زَيْدُ بْنُ ثَابِتٍ أَمَرَنِي رَسُولُ اللهِ ﷺ فَتَعَلَّمْتُ لَهُ كِتَابَ يَهُودَ وَقَالَ إِنِّي وَاللهِ مَا آمَنُ يَهُودَ عَلَى كِتَابِي فَتَعَلَّمْتُهُ فَلَمْ يَمُرَّ بِي نِصْفُ شَهْرٍ وَقَالَ أَبُو دَاوُدَ إِلَّا نِصْفُ شَهْرٍ حَتَّى حَذَقْتُهُ قَالَ أَبِي فَكُنْتُ أَكْتُبُ لَهُ إِذَا كَتَبَ وَأَقْرَأُ لَهُ إِذَا كُتِبَ إِلَيْهِ  

"عَنْ زَيْد بن ثَابِتٍ قَالَ: أَتَى بِىَ النَّبِى ﷺ مَقْدَمةُ الْمدنيَةَ، فَقَالُوا يَا رَسُولَ اللهْ هَذَا غُلامٌ مِنْ بَنِى النَّجَارِ وَقَدْ قَرأَ مِمَّا أُنْزِلَ عَلَيْكَ سَبْع عَشْرةَ سُورَة، فَقَرأَ عَلَى رَسُولِ الله ﷺ فَأَعْجَبَهُ ذَلِكَ، فَقَالَ: يَا زَيْدُ تَعَلَّم لِى كِتَابَ يَهُودَ، فَإِنِّى وَالله مَا آمَنُ يَهُودَ عَلَى كتَابِى فَتَعَلَّمْتُهُ، فَمَا مَضَى لِىَ نِصْفُ شَهْرٍ حتى حذِقْتُهُ فَكُنْتُ أَكْتُبُ لِرَسُول الله ﷺ إِذَا كَتَبَ إِلَيهِمْ، وَأَقْرَأُ كِتَابهُم إِذَا كَتَبُوا إِلَيْهِ".