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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
bayhaqi:20290 – Abū ʿAbdullāh al-Ḥāfiẓ > Abū al-ʿAbbās Muḥammad b. Yaʿqūb > Saʿīd b. ʿUthmān al-Tanūkhī > Muʿāwiyah b. Ḥafṣ > al-Walīd b. Muslim > Ḥafṣ b. Ghaylān > Sulaymān b. Mūsá > Katab

[Machine] Umar ibn Al-Khattab wrote: "Indeed, the prince's trade in his emirate is a loss."  

البيهقي:٢٠٢٩٠ – أَخْبَرَنَا أَبُو عَبْدِ اللهِ الْحَافِظُ ثنا أَبُو الْعَبَّاسِ مُحَمَّدُ بْنُ يَعْقُوبَ ثنا سَعِيدُ بْنُ عُثْمَانَ التَّنُوخِيُّ ثنا مُعَاوِيَةُ بْنُ حَفْصٍ أنبأ الْوَلِيدُ بْنُ مُسْلِمٍ عَنْ حَفْصِ بْنِ غَيْلَانَ عَنْ سُلَيْمَانَ بْنِ مُوسَى قَالَ

كَتَبَ عُمَرُ بْنُ الْخَطَّابِ ؓ إِنَّ تِجَارَةَ الْأَمِيرِ فِي إِمَارَتِهِ خَسَارَةٌ  

See similar narrations below:

Collected by Suyūṭī