It is narrated from Imam Reza/Ridha (AS) who said:

Beware that the highest point of obeying Allah (SWT) is that we must submit to all Divine Decrees and Laws and act upon all of them, be it those decrees which our wisdom can understand the philosophy of them or commands which our wisdom cannot understand their philosophies. And God tests people by their obedience and servitude through logical and super logical decrees in order to warn them against future evasion and remove all doubts [1]. In another narration Imam Reza (AS) said: All the cases which Allah (SWT) has declared as Mobah (permissible) are for the benefit of the human being, and whatever has been declared as Haram (not permissible) is due to their harmful effects and dangers [2].

[1] Da’eratul Ma’arif Fiqh Moqarin, Vol. 1, Page 416.

[2] As Above, Page 103.

Source: en.shafaqna.com