Hadith 21:12
Sahih (Darussalam)
It was narrated from (Ibn Buraidah) that his father said:
"I heard the Messenger of Allah say: 'The believer dies with sweat on his forehead."'
أَخْبَرَنَا مُحَمَّدُ بْنُ مَعْمَرٍ، قَالَ حَدَّثَنَا يُوسُفُ بْنُ يَعْقُوبَ، قَالَ حَدَّثَنَا كَهْمَسٌ، عَنِ ابْنِ بُرَيْدَةَ، عَنْ أَبِيهِ، قَالَ سَمِعْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم يَقُولُ " الْمُؤْمِنُ يَمُوتُ بِعَرَقِ الْجَبِينِ "
Original Reference: Sunan an-Nasa'i 1829