ماذا يعني مدارك السالكين؟

Perhaps you mean Ibn al-Qayyim's famous book: Madarij al-Salikin (The Stages of the Seekers).

Ibn al-Qayyim mentioned this book of his in:

"Zad al-Ma'ad" (Provisions of the Afterlife) by the name: (Madarij al-Salikin).

"Al-Kalam 'ala Mas'alat al-Sama'" (Discourse on the Issue of Listening to Music) by the name: (Marahil al-Sa'irin bayna Manazil Iyyaka Na'budu wa Iyyaka Nasta'in) (The Stages of Those Journeying Between the Stations of "You Alone We Worship and You Alone We Ask for Help").

The meaning of "Madraj": a path.

The meaning of "al-Salik fi Tariq": one who treads it.