Sahih Bukhari
To make the Heart Tender (Ar-Riqaq)
Volume: 008 / Book Number: 076 / Hadith Number: 538
Narrated Ibn 'Umar:
The Prophet said (regarding the Verse), "A Day when all mankind will stand before the Lord of the Worlds,' (that day) they will stand, drowned in their sweat up to the middle of their ears."