What is "saifia"

The Silsila-e-Saifia Urdu سیفیہ Arabic السیفیہ is a Muslim Sufi order based in Pakistan, with a following in the UK, the US, Afghanistan, India, Bangladesh and various countries of the Middle East. The tariqa was started by Akhundzada Saif-ur-Rahman Mubarak (grandmaster of the Saifi Silsila lineage), also known as Naqshbandiyya Mujaddidya.