Sunan an-Nasa'i, Hadith 2577 ⓘ
It was narrated that Abu Hurairah said: "The Messenger of Allah said: "The one who strives to sponsor a widow or a poor person is like the one who strives in Jihad in the cause of Allah, the Mighty and Sublime."'
أَخْبَرَنَا عَمْرُو بْنُ مَنْصُورٍ، قَالَ حَدَّثَنَا عَبْدُ اللَّهِ بْنُ مَسْلَمَةَ، قَالَ حَدَّثَنَا مَالِكٌ، عَنْ ثَوْرِ بْنِ زَيْدٍ الدِّيلِيِّ، عَنْ أَبِي الْغَيْثِ، عَنْ أَبِي هُرَيْرَةَ، قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " السَّاعِي عَلَى الأَرْمَلَةِ وَالْمِسْكِينِ كَالْمُجَاهِدِ فِي سَبِيلِ اللَّهِ عَزَّ وَجَلَّ " .
also referenced under: Book 23, Hadith 0 (In-Book) & Volume 3, Book 23, Hadith 2578 (DarusSalam)