الباطن
هو اسمٌ من أسماء الله الحسنى، يدل على صفة (الباطنيَّةِ)؛ أي إنه...
Reliable, but some spoke about him, yet there is no harm
(ثِقَةٌ فِيْه كَلَام لَا يَضُر)
من موسوعة المصطلحات الإسلامية
التعريف
A description of a narrator implying that he is unblemished and very accurate, and that some scholars criticised him, but their criticism does not adversely affect his narrations. It is a term close to the fourth degree of acceptability. The hadiths narrated by people of this degree are written down to serve as evidence.