أكثر الناس حسابا يوم القيامة الصحيح الفارغ

The people who will be most accountable on the Day of Resurrection will be the healthy ones who had free time.

—Muʿāwiyah b. Qurrah [d. 113H]

(from Iqtidaa’ ul-’Ilm il-’Amal [The Need Knowledge has of Action] by al-Khateeb al-Baghdaadee)

(Also read on pg 65-72, Shaykh Husayn al-’Awaayishah, Adorning Knowledge with Actions. Al-Hidaayah Publishing & Distribution Ltd. Birmingham: 1999.)