Sheikh Ahmad Sa`îd al-Ghamidî, professor at Umm al-Qurâ University
`Abd al-Qâdir al-Jîlânî was a prominent Hanbalî jurist and one of the moderate Sufi scholars. His belief was correct, in conformity with that of the Salaf. He used to call people to the correct path and to avoid innovation. Ibn Taymiyah speaks highly of him in many of his books.
However, it should not go unnoticed that this venerable sheikh had fallen into some innovations in his practice and at times relied upon weak hadîth. He also employed some Sufi concepts in his public addresses.
Here are some of his mistakes that we should be aware of:
1. He said it is permissible to travel with the specific intention of visiting the grave of the Prophet (peace be upon him).
2. He permitted during supplications for a person to ask Allah for something "for the sake of the Prophet (peace be upon him)".
3. He encouraged certain acts of worship to be carried out in the month of Rajab and also in the middle of Sha`ban.
4. He prescribed some specific prayers to be performed on certain days and nights.
5. He attributed special rewards for the fast of `Ashûrâ that are not cited in the hadîth.
Some miracles are attributed to him, but they cannot be confirmed.
Source: Islam Today