Khabbab Ibn Al-Arat

Hadith 28

None of you should make a request for death because of the trouble in which he is involved, but if there is no other help to it, then say: “O Allah, keep me alive as long there is goodness in life for me and bring death to me when there is goodness in death for me.”

Bukhari, Mardaa 19; Muslim, Dhikr 10; Tirmidhi, Janaa’iz 3.