Sayyiduna Abu Hurayrah (may Allah be pleased with him) said that the Prophet (peace and blessings be upon him) said: "Whoever becomes the commander of ten men will come on the Day of Resurrection bound; his justice will free him or his injustice will destroy him."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب آداب القاضي / 20215