Abjuration
Level: Enforcer 1, Magewright 1, Sentinel 1, Sorcerer 1, Wizard 1, Urban Druid 1
Components: V
Casting Time: 1 standard action
Range: Medium (100 ft. + 10 ft./level)
Target: One portal, up to 20 sq. ft./level
Duration: 1 minute/level (D)
Saving Throw: None
Spell Resistance: No
This spell magically holds shut a door, gate, window or shutter of wood, metal, or stone. The magic affects the portal just as if it were securely closed and normally locked. A knock spell or a successful dispel magic spell can negate a hold portal spell.
For a portal affected by this spell, add 5 to the normal DC for forcing open the portal.
Source: Player’s Handbook (Page 241)