Concept:This hadith explains Ihsan, the highest level of worship in Islam.
Explanation:The second hadith in an-Nawawi's collection is the well-known hadith of Jibril.
It teaches the three levels of religion: Islam, Iman, and Ihsan.
When Jibril asked about Ihsan, the Prophet (peace be upon him) said: "It is to worship Allah as though you see Him, and if you do not see Him, then truly He sees you."
This means a believer should worship Allah with complete sincerity and awareness.
Since we cannot see Allah in this life, we should still worship Him as if we are seeing Him physically.
We must also remember that Allah is always watching us.
This attitude makes worship truly righteous.
Answer:C. one was seeing Him physically