It is reported that Bashr b. Al-Hārith said, “I was once with Al-Fuḍayl b. ʿAyyāḍ in Makkah. He sat with us until midnight, then went and did ṭawāf until the morning. I said, ‘Abū ‘Alī! Won’t you sleep?’ He replied, ‘Woe to you! And is there anyone who hears a mention of the Fire and then feels like sleeping!?’”
Abū Bakr Al-Daynūrī, Al-Mujālasah wa Jawāhir Al-‘Ilm, article 723.