Trusting in Allah has 3 levels:
#01: Trust (Tawakkul),
#02: Submission (Tasleem), and
#03: Complete Entrustment (Tafweedh).
The one who trusts is at peace because of His promise, the one who submits is sufficed by His knowledge, and the one who completely entrusts is pleased with His Wisdom.
So trust is the beginning, submission is the middle, and complete entrustment is the end.
Trust is the characteristic of the believers, Submission is the characteristic of the chosen ones amongst them, and Complete entrustment is the characteristic of the most special of the chosen ones.
Trust was characteristic of the prophets, Submission was the characteristic of Ibraheem عليه السلام , and Complete entrustment was the characteristic of our Prophet Muhammad صل الله عليه وسلم.
مدارج السالكين ٢ ص ٣٩٠
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