Abdullah bin Masud reported,

The Prophet ﷺ was asked about intrusive whisperings, and he said, "That is pure faith."

Azami 218

Sahih

عن عبد الله بن مسعود قال

سئل النبي ﷺ عن الوسوسة، قال: تلك محض الإيمان.

الأعظمي 218صحيح
Contents
Reference
Commentary
Ayat
Collection
Jami al-Kamil
Book
Faith
Chapter
Faith in Allah عز وجل
Section
Waswasa is from sincere faith
Numbering
Jami al-Kamil 218 (2nd edition)
Azami 218