This Surah takes its name from its "first word "Ta Ha. " This name, like the names of many other Surahs, is merely symbolic.
Period of Revelation
The period of its revelation is the same as of Surah Maryam. It is just possible that it was sent down during the Migration to Habash or just after it. Anyhow, it is certain that this Surah was revealed before Hadrat Umar embraced Islam.
According to a well known and authentic tradition when Hadrat Umar set out to kill the Holy Prophet, he met a certain person, who said, "Before you do anything else, you should know that your own sister and brother-in-law have embraced Islam" Hearing this, he directly went to the house of his sister. There he found his sister, Fatimah, and his brother-in-law, Said bin Zaid, learning the contents of a scroll from Khabbab bin Art. When Fatimah saw him coming she hid the scroll at once, but Hadrat Umar had heard the recital, so he began to interrogate them about it. Then he began to thrash his brother-in-