وَحَدَّثَنِي حَجَّاجُ بْنُ الشَّاعِرِ، قَالَ: حَدَّثَنِي أَحْمَدُ - وَهُوَ ابْنُ يُونُسَ - حَدَّثَنَا زَائِدَةُ، عَنْ مَنْصُورٍ وَالْمُغِيرَةِ، عَنْ إِبْرَاهِيمَ، أَنَّ الْحَارِثَ اتُّهِمَ.
Translation: Through Ḥajjāj b. al-Shāʿir, Aḥmad b. Yūnus, Zāʾidah, Manṣūr and al-Mughīrah, then Ibrāhīm, comes the report that al-Ḥārith was accused.
«اتُّهِمَ» is passive: an allegation was made against him, without naming the accuser here. It must not be translated as a confession.
In «عَنْ مَنْصُورٍ وَالْمُغِيرَةِ عَنْ إِبْرَاهِيمَ», al-Nawawī parses “al-Mughīrah” as genitive and coordinated with “Manṣūr”; both names belong to the route to Ibrāhīm, not a new independent sentence.