The Prohibited Of Suspicion
By Al-Imam An-Nawawi (rahimahullāh)
In the name of Allāh, the Most Gracious, the Most Merciful;
All the praise and Thanks are due to Allāh, the Lord of al-ā’lamīn. I testify that there is none worthy of worship except Allāh, and that Muhammad, Sallallāhu ‘alayhi wa sallam, is His Messenger
Allah, the Exalted, says:
"O you who believe! Avoid many suspicions, indeed some suspicions are sins." (Al-Hujurat, 49:12)
1573. Abu Hurairah (radiyallāhu`anhu) said: The Messenger of Allah (Sallallāhu `alayhi wasallam) said, "Beware of suspicion, for suspicion is the worst of false tales."
[Al-Bukhari and Muslim].
Commentary: This Hadith has already been mentioned (No. 15). It warns us against suspicions about other Muslims as this involves telling lies about them, which is strictly forbidden. This is the reason why it is referred to as the worst of false tales. We also learn from this Hadith that the orders and punishments of Shari'ah are enforced on certainty, not on speculations and conjectures.
And Allāh Almighty Knows best.
The Prohibited of Suspicion, Chapter # 272 Riyad-Us-Saliheen, Compiled By Al-Imam Abu Zakariya Yahya bin Sharaf An-Nawawi Ad-Dimashqi]