Ṭā Hā[1] (/ˈtɑːˈhɑː/; Arabic: طه) is the 20th chapter (sūrah) of the Qur'an with 135 verses (āyāt).

It is named "Ṭā Hā" because the chapter starts with the Arabic ḥurūf muqaṭṭaʿāt (disjoined letters): طه (Ṭāhā) which is widely mistaken to be one of the names of the Islamic prophet Muhammad,[2] but is just one of the many unlinked letters at the beginning of many other surahs of the holy Quran.

Among the subjects treated in this chapter are God's call of Moses (Quran 20:10), the Exodus of the Israelites and the crossing of the Red Sea (20:77), the worship of the Golden Calf (20:88) and the Fall of Man (20:120).

[5] Sura 20 displays several thematic and stylistic patterns described by Angelika Neuwirth in Jane McAuliffe's book "The Cambridge Companion to the Qur'an".

Additionally, sura 20 employs what has been termed the "ring structure" to reinforce its central theme.

In the body of the sura, there are two distinct stories, one about Moses and one about Adam, each of which is broken into smaller sections.

Both stories are prefaced by instructions from God to Muhammad, and followed by a discussion of judgment day and the punishment of the disbelievers.

To conclude the sura, there is another section restating and reinforcing the main theme, followed by a brief instruction to Muhammad.

This repetitive pattern is what Carl W. Ernst terms the ring structure in his book "How to Read the Qur'an".

The introduction and conclusion paragraphs, including the verses where God addresses Muhammad, are the bookends to the sura, and bind the stories together.

Moses is originally tasked by God to go to Pharaoh, who has erred, and try to show him the right path.

During his absence, his people are led awry by al-Samiri, and begin to worship a golden calf instead of God.

He exiles al-Samiri, and chastises his brother Aaron for allowing the people to worship anything other than the one true God.

"[5] Verse 113: "We have sent the Qur'an down in the Arabic tongue and given all kinds of warnings in it, so that they may beware or it may make them take heed.

Verse 131: "And do not gaze longingly at what We have given some of them to enjoy, the finery of this present life: We test them through this, but the provision of your Lord is better and more lasting.