No. ٤vol. 7 · page 382
عَلِيُّ بْنُ إِبْرَاهِيمَ عَنْ أَبِيهِ عَنْ إِسْمَاعِيلَ بْنِ مَرَّارٍ وَ غَيْرِهِ عَنْ يُونُسَ عَنْ بَعْضِ أَصْحَابِهِ عَنْ أَبِي عَبْدِ اللَّهِ ع قَالَ:
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إِذَا سَمِعَ الرَّجُلُ الشَّهَادَةَ فَلَمْ يُشْهَدْ عَلَيْهَا فَهُوَ بِالْخِيَارِ إِنْ شَاءَ شَهِدَ وَ إِنْ شَاءَ سَكَتَ إِلَّا إِذَا عَلِمَ مِنَ الظَّالِمِ فَيَشْهَدُ وَ لَا يَحِلُّ لَهُ أَنْ لَا يَشْهَدَ.
English translationMuhammad Sarwar
4. Ali ibn Ibrahim has narrated from his father from ’Isma‘il ibn Marrar and others from Yunus from certain persons of his people who has narrated the following: “Abu ‘Abd Allah (a.s.), has said, ‘If a man hears a testimony but has not witnessed it, he has the choice to testify or remain silent, unless he knows that a rightful party suffers injustice, in which case it is not lawful to remain silent.’”
Translation: Muhammad Sarwar·Thaqalayn link·The Arabic above is the original.
Commentary1 available source
لا يوجد شرح متاح لهذا الحديث.