O Messenger of Allah, intercede for me.” In other words: “Pray to Allah, O Messenger of Allah, for my recovery.” May a Muslim keep repeating this supplication, and does it really have the healing power its advocates claim? Please guide us—may Allah bless you.
Answer: This supplication amounts to major associationism (shirk akbar), because it is a plea directed to the Prophet ﷺ, asking him to remove hardship and illness—something only Allah, exalted is He, can do. Requesting it from anyone besides Allah is therefore major associationism. The same ruling applies to asking the Prophet ﷺ for intercession; that too is major associationism. The early idolaters used to worship the “saints” and would say, “These are our intercessors with Allah.” Allah reproached them and forbade the practice, saying, “They worship, instead of Allah, that which can neither harm nor benefit them, and they say, ‘These are our intercessors with Allah.’” ⦗Yunus 10:18⦘; and He says, “Unquestionably, to Allah alone belongs pure religion. Those who take patrons besides Him say, ‘We only worship them so that they may bring us nearer to Allah in rank.’” ⦗Az-Zumar 39:3⦘.
All of this is major associationism—the one sin that will not be forgiven unless a person repents to Allah from it, embraces tawḥīd (Allah’s oneness), and holds fast to the creed of Islam. Hence this is a polytheistic invocation that a Muslim must neither utter nor employ; rather, he has a duty to forbid it and warn against it.
The lawful supplications for the sick and the Qur’anic incantations used for healing are well-established and well-known. One should consult their sources in the reliable collections of Islam, such as Ṣaḥīḥ al-Bukhārī and Ṣaḥīḥ Muslim. Likewise, reciting the Qur’an over a diabetic patient—or anyone who is ill—especially reciting Sūrat al-Fātiḥa over the sick, brings healing, reward, and abundant good. Allah, exalted is He, has sufficed us with this and spared us the need for polytheistic practices.
It is impermissible for a Muslim to engage in anything tinged with associationism, or to embark upon any deed or utter any supplication, until it has been proven to him and he is certain that it