[bxxasxxa]

Tariq Ramadhan, Al-Banna's grandson writes:
"From the age of twelve, his destiny had been mapped out through the study and dhikr circles of the Husafiya tariqa. There he learnt the importance of being with God, of remembering him with all his heart and soul, permanently. He also learnt the true criteria to success: faith, humility, effort and personal discipline. Within the core of his education, he had a very deep understanding of jihad al-nafs: to exist for God, alongside God, to reform one’s heart, purify one’s intentions, make time for the Most High before wanting to act in His name. The Sufi masters of the Husafiya tariqa were very strict in this regard - they were always concerned to never deviate from the authentic traditions of ahl al-sunna wal-jama’ah and keeping away from heterodoxy. All that really counted for them were the written references of the Qur’an, the Sunnah, the example of the Prophet (may the peace and blessings of God be upon him), and of the devoted companions (may God be pleased with them). Hasan Al-Banna never forgot this teaching and his entire allegiance to the cause was founded on the same fundamental principles: the Qu’ran is our book, the Sunnah our wisdom, and it is only these basic principles which will awaken our conscience, nurture our heart and intensify our dhikr."
Read full here:
http://www.tariqramadan.com/spip.php?article203

[Muramoursuard]

If my memory serves me right, it is a branch of the Shadhili tariqa... which has strong ties to the Shariah..