Shaykh Hisham Kabanni,
Who writes [private] is the province of [private].
I contacted the brother [private] of Cordoba province and the brother [private] who lives in [private].
Who writes is also a professor of the Chair of Islam in the National University of [private].
My concern is this: As your order Hadra practices, I would like to know the Qur’an or hadith support or the sunna of the Prophet Muhammad (pbuh) for the practice.
And if the general opinion that the Naqshbandi tariqah recently deceased Sheikh Nizam Al Haqqani would be master of Imam Mahdi (a) when it appears, as I have read in some books that order. And on this I would like to know if they have any Quranic or hadith support.
Thank you very much. Sorry to burst and salute him with all respect
wa `alaykum salam
Regarding hadrah, please see the eshaykh posting: Hadrah in Hadith
Regarding Imam Mahdi, there are many authentic ahadith about his appearance in the Last Days. As to who his teacher is, that is not explicitly mentioned.