A number of our people have narrated from Ahmad ibn Muhammad from al-Hajjal from Tha‘laba from Zurara who has said the following.
"I heard ABU JA‘FAR AND ABU ‘ABD ALLAH (ASWS) say,
‘ALLAH (SWT), the Most Holy, the Most High has made the Holy PROPHET (SAWW) in charge of the affairs of His creatures to see how their obedience is. He then recited this verse of Holy Quran, "... what the Messenger (of ALLAH (SWT)) gives you, you must take (obey) and what he prohibits you, you must desist from ..." (59:7)
[Ref: Al Kaafi Vol.1 Pg.266]