Question: Noble Shaikh, what is the ruling on one who recites the Qur’aan whilst not having wudoo, regardless of whether he recites from memory or from the mus-haf?
 Answer: It is permissible for a person to recite the Qur’aan without having wudoo if he recites from his memory. This is since nothing prevented the Prophet (sallAllaahu ‘alayhi wa sallam) from reciting the Qur’aan except for Janaabah (sexual impurity). He (sallAllaahu ‘alayhi wa sallam) would recite the Qur’aan whilst in a state of wudoo and without it.
As for the mus-haf, it is not permissible for someone who has broken his wudoo to touch it, regardless of whether it is the minor form of impurity or the major form. Allaah says: “No one touches it except for the pure.” [Surah Al-Waaqi’ah: 79] This means: “Those who are pure and free from impurities, uncleanness and Shirk.” Also in the hadeeth, the Prophet (sallAllaahu ‘alayhi wa sallam) wrote a letter to his vice-regent ‘Amr bin Hazm in which he instructed him: “No one should touch the mus-haf except for the purified.”
This is also the view that has been unanimously agreed upon by the four Imaams – that it is not permissible for one in the state of impurity – whether major or minor state – to touch the mus-haf except from behind a covering, such as when the mus-haf is in a box or a bag or if one touches it using one’s garment or sleeve as a barrier.
Source: Questions & Answers on the Qur’aan – Shaykh Saalih Al-Fawzaan, al-ibaanah.com