Abu Muhammad Khalaf ibn Hisham ibn Tha'lab al-Asadi al-Bazzar al-Baghdadi, better known as Khalaf (150–229AH, -844CE), was an important figure in the history of the Qur'an and the Qira'at, or method of recitation. In addition to being a transmitter for the Quran reading method of Hamzah az-Zaiyyat, one of the seven canonical readers, he was also known for his own independent method that is counted among the three accepted but less famous methods.
- Scott C. Lucas, Constructive Critics, Hadith Literature, and the Articulation of Sunnī Islam, pg. 184. Leiden: Brill Publishers, 2005. ISBN 9789004133198
- Claude Gilliot, Creation of a fixed text, pg. 51. Taken from The Cambridge Companion to the Qur'an by Jane Dammen McAuliffe. Cambridge: Cambridge University Press, 2006. ISBN 9780521539340
- Muhammad Ghoniem and MSM Saifullah, The Ten Readers & Their Transmitters. (c) Islamic Awareness. Updated January 8, 2002; accessed April 11, 2016.
- Shady Hekmat Nasser, Ibn Mujahid and the Canonization of the Seven Readings, p. 129. Taken from The Transmission of the Variant Readings of the Qur'an: The Problem of Tawaatur and the Emergence of Shawaadhdh. Leiden: Brill Publishers, 2012. ISBN 9789004240810
- Shady Nasser, Canonization, pg. 49.