Do the Isra'iliyyat have the ruling of marfu' (traced to the Prophet)?

The questioner : Shaykh, regarding our statement on the issue of Isra'iliyyat, meaning that a Companion narrates a hadith which is actually from the Isra'iliyyat, I do not know, Shaykh, is the issue of Isra'iliyyat that they are restricted to the ruling of marfu' (traced to the Prophet), meaning, for example, that their scope is narrowed, Shaykh?

The Shaykh : Suppose Ibn 'Abbas speaks about an event that occurred before Islam; it is possible that it is from the Isra'iliyyat. If you stop at the criterion we mentioned, you will be at ease. Anything that pertains to knowledge of the unseen and cannot possibly be from the Isra'iliyyat has the ruling of marfu' (traced to the Prophet). However, if there is a possibility that it is from the Isra'iliyyat, then it cannot be said to be mawquf (stopping at a Companion); it has the ruling of marfu' (traced to the Prophet).