Nahj al-Balāgha
Hadith 1803٢٢٠. وَقَالَ (عليه السلام): لَيْسَ مِنَ الْعَدْلِ الْقَضَاءُ عَلَى الثِّقَةِ بِالظَّنِّ.
220. Amīr al-mu’minīn, peace be upon him, said: There is no justice in passing a verdict by relying on probability.