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Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
nasai-kubra:8364 – ʿAlī b. Khashram > ʿĪsá > al-Aʿmash > ʿAmr b. Murrah > Abū al-Bakhtarī > ʿAlī

[Machine] "The Messenger of Allah sent me to Yemen, so I said, 'You are sending me to a people who are more knowledgeable than me, so how will I judge among them?' He replied, 'Allah will guide your heart and will make your tongue steadfast.' I said, 'So, I will not encounter any difficulties in ruling after that?'"  

الكبرى للنسائي:٨٣٦٤ – أَخْبَرَنَا عَلِيُّ بْنُ خَشْرَمٍ قَالَ أَخْبَرَنَا عِيسَى عَنِ الْأَعْمَشِ عَنْ عَمْرِو بْنِ مُرَّةَ عَنْ أَبِي الْبَخْتَرِيِّ عَنْ عَلِيٍّ قَالَ

بَعَثَنِي رَسُولُ اللهِ إِلَى الْيَمَنِ فَقُلْتُ إِنَّكَ تَبْعَثُنِي إِلَى قَوْمٍ أَسَنَّ مِنِّي فَكَيْفَ الْقَضَاءُ فِيهِمْ؟ فَقَالَ «اللهُ سَيَهْدِي قَلْبَكَ وَيُثَبِّتُ لِسَانَكَ» قَالَ «فَمَا تَعَايَيْتُ فِي حُكُومَةٍ بَعْدَ»  

See similar narrations below:

Collected by Aḥmad
ahmad:1342 – Yaḥyá b. Ādam > Isrāʾīl > Abū Isḥāq > Ḥārithah b. Muḍarrib > ʿAlī

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  

أحمد:١٣٤٢ – حَدَّثَنَا يَحْيَى بْنُ آدَمَ حَدَّثَنَا إِسْرَائِيلُ عَنْ أَبِي إِسْحَاقَ عَنْ حَارِثَةَ بْنِ مُضَرِّبٍ عَنْ عَلِيٍّ قَالَ

بَعَثَنِي رَسُولُ اللهِ ﷺ إِلَى الْيَمَنِ فَقُلْتُ إِنَّكَ تَبْعَثُنِي إِلَى قَوْمٍ وَهُمْ أَسَنُّ مِنِّي لِأَقْضِيَ بَيْنَهُمْ فَقَالَ اذْهَبْ فَإِنَّ اللهَ سَيَهْدِي قَلْبَكَ وَيُثَبِّتُ لِسَانَكَ  

ahmad:666 – Yaḥyá b. Ādam > Isrāʾīl > Abū Isḥāq > Ḥārithah b. Muḍarrib > ʿAlī

The Messenger of Allah ﷺ sent me to Yemen and I said: O Messenger of Allah, are you sending me to people who are older than me to judge between them? He said: “Go, for Allah, may He be exalted, will make your tongue steadfast and guide your heart.”  

أحمد:٦٦٦ – حَدَّثَنَا يَحْيَى بْنُ آدَمَ حَدَّثَنَا إِسْرَائِيلُ عَنْ أَبِي إِسْحَاقَ عَنْ حَارِثَةَ بْنِ مُضَرِّبٍ عَنْ عَلِيٍّ قَالَ

بَعَثَنِي رَسُولُ اللهِ ﷺ إِلَى الْيَمَنِ فَقُلْتُ يَا رَسُولَ اللهِ إِنَّكَ تَبْعَثُنِي إِلَى قَوْمٍ هُمْ أَسَنُّ مِنِّي لِأَقْضِيَ بَيْنَهُمْ قَالَ اذْهَبْ فَإِنَّ اللهَ تَعَالَى سَيُثَبِّتُ لِسَانَكَ وَيَهْدِي قَلْبَكَ