JAMB - Islamic Religious Knowledge Irk (1993 - No. 1)
To ensure the authenticity of the compiled text of the Holy Qur’ān, extracts written on various materials were cross-checked with texts
written by the Prophet (S.A.W) himself
recalled from memory by early memorizers
delivered by angel Jirīl to the Prophet (S.A.W)
written by Zayd bin Thābit