mentioned the Seventh Existence last. And he—may Allah sanctify his secret—only named it the Seventh Existence as an indication of the application of the name of the Sabbath in the Torah upon it, and the glorification of the Sabbath day and its preference in the Torah over the rest of the days. Though it is but the last of the days in arrangement, creation, and response, the smallest of them in knowledge, and the lowest of them in rank.

Nevertheless, all the books of Oneness have decided that:

Sunday is for the Master Muhammad

Monday is for the Master Salman

Tuesday is for al-Miqdad

...and so on until Saturday, which is for Qanbar bin Kadan, who is the Terrestrial Existence.