Hadith 11 of an-Nawawi admonishes Muslims to
- be certain in some acts of worship
-
avoid doubtful things
- note that doubt and uncertainty are close to each other
- always do things clearly
The correct answer is: B
Explanation
"...Leave that about which you are in doubt for that about which you are in no doubt"
Al-Hasan bin Ali who said: I committed to memory from the Messenger of Allah, sallallahu alayhi wasallam, (the following words): "Leave that about which you are in doubt for that about which you are in no doubt." [Al-Tirmidhi and al-Nasaii related it, and al-Tirmidhi said: It is a good and genuine Hadith]. Truth will lead to tranquility and falsehood will lead to doubt. We must all act and do what is permissible and proper.