Question: How does a Muslim know he has actualized Tawheed and what is the virtue of actualizing Tawheed?
Answer: “The Muslim should not sanctify himself nor praise himself saying: “I have actualized Tawheed”. Actualizing Tawheed means purifying it from deficiencies, from Shirk, from sins, and disobedience. This is actualizing Tawheed. There is a difference between the one who singles out Allah (الموحِّد) and one who actualized Tawheed. The one who actualizes Tawheed is of a higher level than one who singles out Allah (الموحِّد) only”.
Faisal bin Abdul Qaadir bin Hassan