What is the Sunnah supplication recited upon exiting the restroom?

Istinja: Restroom Etiquettes, Sunnahs, and Disliked Places

• Alhamdulillah-illadhi khalaqani
• Alhamdulillah-illadhi adh-haba 'anni al-adha wa 'afani
• Astaghfirullah al-Azheem
• Bismillahi wa-l-salatu 'ala rasulillah