Naqshbandi Golden Chain Afandi, Hasan Hilmi Afandi and the rest of the Daghestani Ma'zuns, as can be seen below. Naqshbandi Golden Chain The Naqshbandi Golden Chain is a lineage of spiritual masters of the Naqshbandi Sufi order related to each other going back to the Islamic prophet Muhammad It is a chain in which each scholar was given "ijazah" or permission for dhikr of God by his own teacher or pir to transmit the knowledge he had received to the next generation of students in the traditional manner of Sufi transmission. The Golden Chain, as different from all other Sufi lineages, is unique
Slice genus Slice genus In mathematics, the slice genus of a smooth knot "K" in "S" (sometimes called its Murasugi genus or 4-ball genus) is the least integer g such that "K" is the boundary of a connected, orientable 2-manifold "S" of genus "g" properly embedded in the 4-ball "D" bounded by "S". More precisely, if "S" is required to be smoothly embedded, then this integer "g" is the "smooth slice genus" of "K" and is often denoted g("K") or g("K"), whereas if "S" is required only to be topologically locally flatly embedded then "g" is the "topologically locally flat slice genus"