How was the Qur'an Collected?

In Suyuti’s Itqan it is said that the Qur'an had been written down in its entirety in the time of the Prophet but had not been brought together in one single place, and that therefore these written records or documents had not been arranged in order.' [Itqan, I, p. 41]

However, this statement does not preclude that the ordering of the Qur'an and the arrangement of the suras, was fixed by the Prophet himself and safeguarded through oral transmission.