For those following the Hanbali or Salafi tradition, there is a famous collection of fatwas titled Tuhfatul Ikhwan bi-Ajwibat Muhimmat

This text focuses on the inner purification of the heart, the "beautifying of youth" with virtues, and self-actualization through discipline and ethics.

While many students look for a free , it is also widely available through Islamic book retailers for those who prefer a physical reference.

Tuhfatul Ikhwan (The Gift for the Brethren) Author: Shah Waliullah Dehlawi (Shah Waliyullah Ad-Dihlawi) Subject: Islamic Theology, Spirituality (Tasawwuf), and Social Ethics.

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The author explains the essential beliefs of Ahl al-Sunnah wal-Jama'ah. He emphasizes understanding the oneness of God ( Tawhid ) not just as a verbal declaration, but as a spiritual reality that illuminates the heart.