تفسير : (by the scripture which maketh plain) he says: and i swear by the scripture which makes plain the lawful and unlawful, the commands and prohibitions that that which will happen has already been decreed; it is also said allah swore by the (ha) and (mim) and also by the scripture which makes plain the commands and prohibitions, the lawful and unlawful,
Jalāl al-Dīn al-Maḥallī
تفسير : by the book, the qur’ān, that clarifies, the one that manifests the path of guidance and what one needs of [the prescriptions of] the law.
Sahl al-Tustari
تفسير : hā, mīm ! by the book that makes things clear.that is, within it he clearly distinguished guidance from error, good from evil, and expounded the bliss of the fortunate (suʿadāʾ) and the misery of the wretched (ashqiyāʾ).