This is just published in president.ir [Persian], the official website of the President of the Islamic Republic.

In the Name of Allah, the Merciful, the Compassionate

Epic, thoughtful, and holy presence of the president of Iran in the UN and the different speeches he gave in New York caused a wave of delight and pure emotions in the loyal and religious people of Iran and the lovers of the Islamic Republic in the world.

We were just informed that … [different groups of people] have invited the nation to come to the airport [when Ahmadinejad's flight lands]. The president said, while recognizing people’s concerns, that the nation should attend mosques to thank Allah for this glorious victory.