Wastage of Time and Corruption of the Heart

“Be cautious of (the) mixing with a person which will cause wastage of time and corruption of the heart. For verily, when time is wasted and the heart is corrupted, all of the affairs of the servant will become ruined, and he will be of those about whom Allaah, the Exalted, said:

وَلَا تُطِعْ مَنْ أَغْفَلْنَا قَلْبَهُ عَن ذِكْرِنَا وَاتَّبَعَ هَوَاهُ وَكَانَ أَمْرُهُ فُرُطًا

.. and obey not him whose heart We have made heedless of Our Remembrance, one who follows his own lusts and whose affair (deeds) has been lost. (Al-Kahf 18:28)”

- Ibn al-Qayyim al-Jawziyyah. The Path to Guidance, page 9. Refer to Chapter 13: Ibn al-Qayyim on Making Use of One’s Time in Changing Evil into Good.