Hadith 7:178
Narrated Abu Hurairah (RA):
Allah's Messenger (ﷺ) said: "When a son of Adam (i.e. any human being) dies his deeds are discontinued, with three exceptions: Sadaqah, whose benefit is continuous; or knowledge from which benefit continues to be reaped, or a righteous child who supplicates for him." [Reported by Muslim].
عَنْ أَبِي هُرَيْرَةَ - رضى الله عنه - أَنَّ رَسُولَ اَللَّهِ - صلى الله عليه وسلم -قَالَ : { إِذَا مَاتَ اَلْإِنْسَانُ اِنْقَطَعَ عَنْهُ عَمَلُهُ إِلَّا مِنْ ثَلَاثٍ : صَدَقَةٍ جَارِيَةٍ ، أَوْ عِلْمٍ يُنْتَفَعُ بِهِ، أَوْ وَلَدٍ صَالَحٍ يَدْعُو لَهُ } رَوَاهُ مُسْلِم ٌ