Al-Anbiyaʼ is the 21st chapter (sūrah) of the Quran with 112 verses (āyāt). Regarding the timing and contextual background of the believed revelation, it is an earlier "Meccan surah", which means it is believed to have been revealed in Mecca, rather than later in Medina. Its principal subject matter is prophets of the past, who also preached the same faith as Muhammad.
Folio from Samarkand Kufic Quran with surah Al-Anbiya. Late 8th–early 9th century. Metropolitan Museum of Art
Page from the Qur'an copied by Ahmad al-Suhrawardi (1256-1340) with the fragment of the surah Al-Anbiya (verses 25nn). Illumination by Muhammad ibn Aybak. Muhaqqaq script. Baghdad, year 1307/1308. Turkish and Islamic Arts Museum
Ṭā Hā 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 : طه (Ṭāhā) which is considered to be one of the names of the Islamic prophet Muhammad.
Surah Ta Ha from a 7th century Quran manuscript