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.
For Khalaf's own, independent method of recitation, the two primary transmitters from him were Ishaq al-Maruzi and Idris al-Haddad.
- 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.