Is it permissible to make du'a' (supplication) by saying, "O Owner of hidden mercy, in You I seek refuge and in You I find sufficiency"?

Question:
Honorable Shaykh, the questioner asks: Is "O Owner of hidden mercy, in You I seek refuge and in You I find sufficiency" among the dhikr (remembrance) of the Sufis? Is it permissible to repeat it? And please direct us, may Allah preserve you, to a book on Sufi dhikr and the refutation thereof.

Answer:
"O Owner of hidden mercy, in You I find sufficiency" is fine. This is a good du'a'. This is a good du'a'. Allah is Subtle with His servants, Glorified and Exalted is He, and His subtlety is hidden from people. Relying on Allah, Mighty and Majestic, and placing trust in Allah is a good thing. There is no harm in this du'a'. It is not a Sufi du'a'; it is a prescribed du'a'. As for books that refute the Sufis, there are many. The most comprehensive and eloquent of them is *Madarij al-Salikin* (The Stations of the Travelers) by Ibn al-Qayyim. In it, he refutes the Sufis and clarifies their excesses and errors; he expanded on this in the book and excelled and benefited. Then there is a contemporary book by Shaykh 'Abd al-Rahman al-Wakil titled *Masa' al-Tasawwuf* (The Demise of Sufism). It is a medium-sized book, *Masa' al-Tasawwuf*, and it is a good book. It is a good book for anyone who reads it. Yes.