ibn hajar said: ‘that (the pause of allâh’s revelation for a few days) was to relieve the messenger of allâh [pbuh] of the fear he experienced and to make him long for the revelation. when the shades of puzzle receded, the flags of truth were raised, the messenger of allâh [pbuh] knew for sure that he had become the messenger of the great lord. he was also certain that what had come to him was no more than the ambassador of inspiration. his waiting and longing for the coming of the revelation constituted a good reason for his steadfastness and self-possession on the arrival of allâh’s inspiration, al-bukhari reported on the authority of jabir bin ‘abdullah that he had heard the messenger of allâh [pbuh] speak about the period of pause as follows:

"while i was walking, i heard a voice from the sky. i looked up, and surely enough, it was the same angel who had visited me in the cave of hira’. he was sitting on a chair between the earth and the sky. i was very afraid of him and knelt on the ground. i went home saying: ‘cover me …, cover me …’. allâh revealed to me the verses:

‘o you (muhammad [pbuh]) enveloped (in garments)! arise and warn! and your lord (allâh) magnify! and your garments purify! and keep away from ar-rujz (the idols)!’" [al-qur'an 74:1-5]

after that the revelation started coming strongly, frequently and regularly. [bukhari, the book of tafseer, 2/733]