Flag of the Islamic Emirate of Afghanistan (Taliban), introduced in 1997
The text is the Shahadah; compare Flag of Saudi Arabia.svg and Flag of Jihad.svg
The ratio is 1:2, according to the September 1997 Amendments to the Flag Law
Vectorized based on the 17 August 2021 Kabul press conference by Zabihullah Mujahid
Design sources (2021–present): [1], [2], [3]

Design sources (1997–2001): [4]
Original: Taliban Vector:  Lexicon