The Prophet (S) rehearsed the Qur'an every Ramadan

شَہۡرُ رَمَضَانَ ٱلَّذِىٓ أُنزِلَ فِيهِ ٱلۡقُرۡءَانُ هُدً۬ى لِّلنَّاسِ وَبَيِّنَـٰتٍ۬ مِّنَ ٱلۡهُدَىٰ وَٱلۡفُرۡقَانِ‌ۚ
"The month of Ramadan is in which the Qur'an was sent down, a guidance for mankind, and clear proofs for the guidance, and the Criterion (of right and wrong)"
(Quran 2:185)

Ibn 'Abbaas( R.A) narrates that
The Messenger of Allah(SAW) was the most generous person, and he would be at his most generous in Ramadan because Jibreel would come to him every night and he would rehearse the Qur'an with him."
(Bukhari)

This Hadith contains recommendation of the following:

• Studying the Qur'ân in Ramadhaan
• Coming together for this purpose
• Checking (one's memory/knowledge of) the Qur'ân with someone who has preserved it better
• Increasing recitation of the Qur'ân in Ramadan
• Appreciating that the night time is the best time to recite, when other preoccupations decrease and it is easier to concentrate, as in (Soorah Al-Muzzammil 73:6)

Further, Fatimah(Ra) narrated from her father(SAW), who told her that
"Jibreel would rehearse the Qur'ân with him (in Ramadan) once every year, and he did so twice in the year of his death."
(Bukhari 6/485)