Sahih al-Bukhari 6007
Book 78: Good Manners and Form (Al-Adab) · Narrated by Abu Huraira
Arabic
حَدَّثَنَا عَبْدُ اللَّهِ بْنُ مَسْلَمَةَ، حَدَّثَنَا مَالِكٌ، عَنْ ثَوْرِ بْنِ زَيْدٍ، عَنْ أَبِي الْغَيْثِ، عَنْ أَبِي هُرَيْرَةَ ـ رضى الله عنه ـ قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " السَّاعِي عَلَى الأَرْمَلَةِ وَالْمِسْكِينِ كَالْمُجَاهِدِ فِي سَبِيلِ اللَّهِ ـ وَأَحْسِبُهُ قَالَ، يَشُكُّ الْقَعْنَبِيُّ ـ كَالْقَائِمِ لاَ يَفْتُرُ، وَكَالصَّائِمِ لاَ يُفْطِرُ ".
English translation
Narrated Abu Huraira:Allah's Messenger (ﷺ) said, "The one who looks after and works for a widow and for a poor person is like a warrior fighting for Allah's Cause." (The narrator Al-Qa'nabi is not sure whether he also said "Like the one who prays all the night without slackness and fasts continuously and never breaks his fast)
Reference: Sahih al-Bukhari 6007, Book of Good Manners and Form (Al-Adab). English translation by Dr. Muhammad Muhsin Khan.