The Messenger of Allah ﷺ sent me to Yemen. I said: You are sending me to people who are older than me for me to judge between them. He said: ʿGo, for Allah will guide your heart and make your tongue steadfast.ʿ (Using translation from Aḥmad 1342)   

بَعَثَنِي رَسُولُ اللهِ ﷺ إِلَى الْيَمَنِ فَقُلْتُ «إِنَّكَ تَبْعَثُنِي إِلَى قَوْمٍ هُمْ أَسَنُّ مِنِّي لِأَقْضِيَ بَيْنَهُمْ» فَقَالَ «إِنَّ اللهَ سَيَهْدِي قَلْبَكَ وَيُثَبِّتُ لِسَانَكَ» قَالَ شَيْبَانُ عَنْ أَبِي إِسْحَاقَ عَنْ عَمْرِو بْنِ حَبَشِيٍّ عَنْ عَلِيٍّ  

[Machine] The Messenger of Allah ﷺ sent me to Yemen, so I said, "O Messenger of Allah, you send me to elderly people with prominent teeth, and I fear that I will not be successful." He said, "Indeed, Allah will make your tongue steadfast and guide your heart."  

بَعَثَنِي رَسُولُ اللهِ ﷺ إِلَى الْيَمَنِ فَقُلْتُ يَا رَسُولَ اللهِ «إِنَّكَ تَبْعَثُنِي إِلَى شُيُوخٍ ذَوِي أَسْنَانٍ إِنِّي أَخَافُ أَنْ لَا أُصِيبَ» قَالَ «إِنَّ اللهَ سَيُثَبِّتُ لِسَانَكَ وَيَهْدِي قَلْبَكَ»