“Salat khusyu’ as Method of Tazkiyat al-nafs for Preventing Anxiety (Study of Salat khusyu’ in Ihya’ ‘Ulum Al-Din)”, Spirit. Healing : J. Tasawuf dan Psikoterapi, vol. 6, no. 2, pp. 256–280, Dec. 2025, doi: 10.19109/sh.v2i6.25195.