Anas (b. Malik) reported Allah's Messenger (ﷺ) as saying. 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 as there is goodness in life for me and bring death to me when there is goodness in death for me.
This hadith has been narrated on the authority of Anas through another chain of transmitters, but with a small variation of wording.
Nadr b. Anas reported, as when Anas was alive, that he said
Had Allah's Messenger (ﷺ) not stated this.." None should make a request for death," I would have definitely done that.
Abu Hazim reported
I visited Khabbab who had seven cauteries on his stomach and he said: Had Allah's Messenger (ﷺ) not forbidden us to call for death, I would have done so.
This hadith has been transmitted on the authority of Isma'il through other chains of narrators.
Hammam b. Munabbih said
Abu Huraira narrated to us ahadith from Allah's Messenger (ﷺ) and out of these one is that Allah's Messenger (ﷺ) said: None amongst you should make a request for death, and do not call for it before it comes, for when any one of you dies, he ceases (to do good) deeds and the life of a believer is not prolonged but for goodness.