[15].Surah Al-Hjir [The Rocky Tract]: Ayat 80-82

Ayat 80. And verily, the dwellers of Al-Hijr (the rocky tract) denied the Messengers.

Ayat 81. And We gave them Our Signs, but they were averse to them.

Ayat 82. And they used to hew out dwellings from the mountains (feeling themselves) secure.

Hazrat Hasan bin `Ali (May Allah be pleased with them) said: I remember (these words) from Messenger of Allah  [SAWW](PBUH) : "Give up what is doubtful to you for that which is not doubtful; for truth is peace of mind and falsehood is doubt".

[At-Tirmidhi Hadith # 2516]. 

Lesson : as mentioned above in Surah Al-Hjir Ayat 81 We gave them Our Signs, but they were averse to them. This Hadith leads us to the conclusion that one must always avoid doubtful things so that he does not do anything unlawful. This message is repeated in another Hadith which says that he who has saved himself from doubts has in fact saved his Faith and honour.