(6) باب الْعَمَلِ الَّذِي يُبْتَغَى بِهِ وَجْهُ اللَّهِ
Narrated Abu Huraira:
Allah's Messenger (ﷺ) said, "Allah says, 'I have nothing to give but Paradise as a reward to my believer slave, who, if I cause his dear friend (or relative) to die, remains patient (and hopes for Allah's Reward).
Reference: Sahih al-Bukhari 6424
In-book reference: Book 81, Hadith 13
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 8, Book 76, Hadith 432