Ibn Mas'ud's recitation regarding the expiation of an oath: (Consecutive) Is it considered mass-transmitted or an interpretation of the verse?

The student: Regarding Ibn Mas'ud's recitation, is it established, or is it an interpretation by the Companion that he considered to be Qur'an?

The Shaykh : Yes, give an example.
The student: Like his recitation in the verses of expiation: three consecutive days. Is it a recitation from the Seven that is read with, or is it an interpretation by the Companion?

The Shaykh : It is not from the Seven, but if the recitation is sound in its chain, the correct view is that it is permissible to read with it, whether in prayer or outside of prayer. As for the statement of some that it is not permissible to read except with the Seven, and that if one reads with a non-Seven recitation that is sound from the Messenger of Allah (peace and blessings be upon him), his prayer is invalid, that is weak. Also, the word is not an interpretation but a restriction. Ibn Mas'ud (may Allah be pleased with him) did not recite a recitation that serves as a restriction in an absolute sense unless he had heard it from the Messenger of Allah (peace and blessings be upon him). ... No, it is not obligatory, because the important thing is the transmission. If a person tells you that there is a recitation such-and-such, you must know that the transmitter is trustworthy. If you know that he is trustworthy, there is no need to know from the Seven Reciters what is obligatory.