The deed which is done seeking Allah's Countenance Sahih al-Bukhari 6424
Arabic hadith text
حَدَّثَنَا قُتَيْبَةُ، حَدَّثَنَا يَعْقُوبُ بْنُ عَبْدِ الرَّحْمَنِ، عَنْ عَمْرٍو، عَنْ سَعِيدٍ الْمَقْبُرِيِّ، عَنْ أَبِي هُرَيْرَةَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ " يَقُولُ اللَّهُ تَعَالَىمَا لِعَبْدِي الْمُؤْمِنِ عِنْدِي جَزَاءٌ، إِذَا قَبَضْتُ صَفِيَّهُ مِنْ أَهْلِ الدُّنْيَا، ثُمَّ احْتَسَبَهُ إِلاَّ الْجَنَّةُ "
Translation
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).