Narrated 'Abdullah bin Buraidah:
from his father that the Prophet (ﷺ) said: "Do you know what the parable of this and this is?" - and he tossed two pebbles. They said: "Allah and His Messenger (ﷺ) know better." He said: "This (the farther) one is hope, and this (closer) one is death." (PT)
English reference (PT): Vol. 5, Book 42, Hadith 2870 (PT)
Arabic reference (PT): Book 44, Hadith 3110 (PT)