Hazrat Saeed bin Jubair (regarding the person who is afflicted with boils, wounds, or illness, then becomes in a state of janabah and does not have the strength to perform ghusl) says that he should perform tayammum.

Hazrat Tawus, regarding a sick person who becomes junub and fears for his life if he performs ghusl, says that he should perform tayammum.

Hazrat Mujahid (regarding those afflicted with boils and other similar disabled persons who fear for their lives) says that they are like travelers and will perform tayammum.

Hazrat Ata narrates that during the time of the Messenger of Allah, peace and blessings be upon him, a man had a wet dream and there were boils and sores on his body. The people made him perform ghusl (ritual bath), and as a result, he passed away. When this matter reached the Prophet, peace and blessings be upon him, he said, "They have ruined him, may Allah ruin them; they have killed him, may Allah kill them."

Hazrat Ali (may Allah be pleased with him) narrates that the Prophet (peace and blessings be upon him) used to recite the Qur'an in every state except in the state of major impurity (janabah).

It is narrated similarly through another chain of transmission.

Hazrat Umar said that a person in a state of major ritual impurity (junub) should not recite the Qur'an.

Ibrahim narrates that Hazrat Ibn Mas'ud was going towards the river Euphrates and was teaching the Qur'an to a man. Hazrat Ibn Mas'ud urinated, so the man stopped reciting. Hazrat Ibn Mas'ud asked him the reason, so he said that you have urinated. He replied, "I am not in a state of major impurity (janabah)."

Hazrat Aswad says that a person in a state of major ritual impurity (janabah) should not recite the Qur'an.

Hazrat Mujahid says that a person in a state of major ritual impurity should not recite the Qur'an.