Actually it says several by way of an inescapable conclusion of logic:
Article I, Section 9 outlines the only means by which habeas corpus may be suspended.
Article I, Section I says the powers in that article belong to Congress.
Article I, Section 9 is in Article I, therefore Article I, Section 9 belongs to Congress.
And since Article I, Section 9 is the only means by which habeas corpus may be suspended, its belonging to Congress also entails that only Congress may suspend it. This fact necessarily excludes any presidential claim to do the same. You have been shown this logical procession many times, Wlat, but not once have you ever addressed it. Nor do I suspect this one will be any different.
As you well know, it doesn't say that.
Walt