The forms of revelations are explained in

The correct answer is Q. 42:51. This verse in the Quran explains the different ways in which Allah communicates with His prophets, including through revelation. The forms of revelation include direct inspiration to the heart (wahy al-qalb), spoken words heard by the prophet (wahy al-samt), and angelic visitations (wahy al-malaikah). This verse also emphasizes that the Prophet Muhammad (SAW) did not receive these revelations through his own desire, but rather through the command of Allah.