I shall tell you four things which people generally are guilty of:
1) Criticizing and accusing people. This brings about negligence in the execution of Allah’s laws.
2) Jealousy for the progress of a Muslim. This leads to ingratitude.
3) Accumulation of haraam (unlawful) assets. This causes forgetfulness of the Aakhirah (hereafter).
4) To become careless regarding the warnings of Allah Ta’ala and to lose hope in His promises. This lead to kufr (Unbelief).
Sufyaan at Thauri said to Hadhrat Haatim