الباطن
هو اسمٌ من أسماء الله الحسنى، يدل على صفة (الباطنيَّةِ)؛ أي إنه...
Abu Ayyūb (may Allah be pleased with him) reported that the Prophet (may Allah's peace and blessings be upon him) said: “Whoever says, ten times: There is no god but Allah alone, Who has no partner, to Him belongs the sovereignty, to Him belongs the praise, and He is Omnipotent over all things; will be as though he emancipated four slaves from the offspring of Isma‘īl.”
شرح الحديث :
The Hadīth is an evidence of the virtue of this "Dhikr" (remembrance of Allah), because it contains of the acknowledgement of the Oneness of Allah; and that whoever says it ten times, understanding it and acting upon its requirements; will have a reward similar to the one who emancipates four slaves from the offspring of Isma‘īl, the son of Ibrahīm (peace be upon both of them).