There is none worthy of worship but Allah, surely death has agonies.

Reference:Al-Bukhari, cf. Al-Asqalani, Fathul-Bari 8/144. The Hadith also mention him using the Siivak (tooth stick).Hisnul Muslim 151

لا إله إلا الله إن للموت لسكرات

Transliteration

Lā ilāha illallāhinna li ‘lmawti la’sakarāt.

Translation

There is none worthy of worship but Allah, surely death has agonies.