Two statements from the Salaf regarding At-Tawakkul – Al-Hasan and Wahb Bin Munabbih
Al – Hasan Al – Basree rahimahullaah: Indeed the reliance of the servant upon his Lord, is that he knows his Lord is his Protector , The Only One upon whose reliance he can solely depend upon. 
Wahb b. Munabbih rahimahullaah : The highest goal (for the servant to attain) is At – Tawakkul. 
. Jaami’ Ul Uloom Wal Hikam of Ibn Rajab Al Hanbali p.1266
 Jaami’ Ul Uloom Wal Hikam of Ibn Rajab Al Hanbalee p.1266 12 Agreed Upon.
Translated by: Abu Ad-Dardaa