Hadith 853
Sayyiduna Abu Huraira (may Allah be pleased with him) narrates: The Noble Prophet (peace and blessings be upon him) said: "Whenever a person sits in a gathering and does not remember Allah, it will be a cause of regret for them. When a person walks on a path and does not remember Allah in it, it will be a cause of regret for them. And when a person goes to his bed and does not remember Allah, this too will be a cause of regret for him."