Is it narrated in the recitations that the first verse of Surat Taha is recited as "Ta'aha," and that the reason for its revelation was the Prophet's — may God's prayers and peace be upon him — standing in night prayer and lifting one of his feet due to intense fatigue, so the verse was revealed with the meaning of "put it on the ground"?

The reading of "Tā-Hā" as an command for the Prophet, peace and blessings be upon him, to tread the earth with his feet has not been established. The only authoritative reading is "Tā-Hā" as individual letters of the alphabet. The Messenger of Allah, peace and blessings be upon him, recited it this way to Ibn Mas'ud, and Jibreel, peace be upon him, descended with it in the same manner.