Az-Zumar (The Troops)
Surah 39 · Verse 36
Is not Allah sufficient for His servant? And they frighten you with those besides Him, and whom Allah leaves to stray, then there is no guide for him.
The polytheist probably used to frightene Prophet Muhammed (PBH) that the false gods would harm him. Allah (SWT) assures him that He is sufficient for him and guidance totally depends on His will
