The Peak of Eloquence · Hadith 1217 (#Passage #26)

(وَ مِنْ هَذَا الْكِتَابِ) لِأَنَّهَا بَيْعَهٌ وَاحِدَةٌ لَا يُثَنَّى فِيهَا النَّظَرُ، وَلَا يُسْتَأْنَفُ فِيهَا الْخِيَارُ، الْخَارِجُ مِنْهَا طَاعِنٌ، وَالْمُرَوِّي فِيهَا مُدَاهِنٌ.

[A part of the same letter :] Because allegiance is once and for all; it is not open to reconsideration nor is there any scope for fresh proceedings of election. He who remains out of it is deemed to be critical of Islam while he who prevaricates upon it is a hypocrite.

Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).