Hadith.3244 - In the narration of Yunus ibn Abd al-Rahman, from some of his companions, from Abu Abdillah (as): I asked him about evidence when it is presented to establish a right-whether it is permissible for the judge to rule based on the testimony of the witnesses. Imam (as) said: "There are five matters in which people must act according to apparent judgment: leadership positions, marriages, slaughtered animals, testimonies, and lineage. So, if a man's outward appearance is trustworthy, his testimony is accepted, and his inner state is not investigated."

Translation: Bab Ul Qaim Publications — attributed by Thaqalayn·The Arabic above is the original.