Musannaf Ibn Abi Shayba 37:242

Ubayd Allah narrated to us, from Shayban, from al-A’mash, from Ibrahim al-Taymi, from his father, who said: I heard Hudhayfah saying: A time will surely come upon you in which a man will wish for death, so he will either be killed or commit disbelief. And a time will surely come upon you in which a man will wish for death, not because of poverty.