Sislila-i-Qadriya

The pioneer of this Order was Shaikh Abdul Qadir Gilani (R.A.), who is
famous with his knowledge, practice, wisdom and taqwa (abstinence). He wrote Fatuh-ul-Ghaib and  Ghaniyat-ul-Talibain  like literary books. In Indian Subcontinent, this cult entered via his son Shaikh Isa but it was flourished by the
endeavors of Makhdoom Shaikh Muhammad  Hussain Gilani (R.A.) to whom
Sikandar Lodhi was a loyal devotee. The saints of this faction were true believer
of  wahdat-ul-wajood (existentialism) and  ravadari-i-mazhab  (liberalism).
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According to S.M Ikram this mystical fraction flourished well during the regime of
Shah Jahan.