«مِنْهَا مَا أَخْرَجَهُ الشَّيْخَانِ فِي صَحِيحَيْهِمَا، مِمَّا لَمْ يَبْلُغِ التَّوَاتُرَ»
One category comprises reports in the two Sahih collections of al-Bukhari and Muslim that have not independently attained tawatur.
Here al-shaykhan refers to Muhammad ibn Ismaʿil al-Bukhari and Muslim ibn al-Hajjaj. The exceptional scholarly appraisal of their collections and the reception of their content provide the context for this argument.
Not every claim that a report is “in a Sahih” establishes every element of the special conclusion. The report’s actual location, relevant scholarly criticism, and possible conflict with another report must be examined. The stated qualifications define those limits.