Possible Clues:

• One's silly to accept portal entry initials with identical password
• Magic words spoken by Ali Baba
• Magic formula delivering easy access
• Kool & the Gang hit with the repeated line, "Get down with the genie"
• Kool & the Gang hit with the repeated line, 'Get down with the genie'
• Old writers start to establish identical way of overcoming one literary barrier?
• Line outside the entrance?
• *Storybook password
• Old writers echo identical passwords
• 'Let me in,' facetiously