Rank 5: a report meeting Bukhari’s condition alone — an authentic report not included in either collection, meeting only the condition associated with Bukhari rather than the combined standard.
Rank 6: a report meeting Muslim’s condition alone — similarly outside both Sahih collections, matching only the condition associated with Muslim.
A judgment about a compiler’s condition is not established simply by seeing a set of narrator names. The transmitter’s relationship with the relevant teacher, report-specific precision, and the other soundness conditions must be evaluated. Excellence in transmission from one teacher does not automatically guarantee identical reliability from every other teacher.
Rank four requires the joint standard, while ranks five and six concern the two separate standards.