Tamim bin Salamah (may Allah have mercy on him) said: Ibn Abi Usayfir (may Allah have mercy on him) came to Judge Shurayh (may Allah have mercy on him) with a dispute (against a man), and he sat with him on the mat. He said: "Get up and sit with your opponent, for your sitting here casts suspicion." Ibn Abi Usayfir (may Allah have mercy on him) became angry, so Judge Shurayh (may Allah have mercy on him) said: "Get up and sit with your opponent; I will not abandon giving support (to the right) while I am able to do so."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب آداب القاضي / 20464