The Book on Virtues of Jihad
كتاب فضائل الجهاد عن رسول الله صلى الله عليه وسلم
Read the English translation first, with the original Arabic directly underneath.
What Has Been Related About The Virtue Of Spending In The Cause Of Allah
Narrated Abu Al-Aswad :
From 'Urwah [bin Az-Zubair], and Sulaiman bin Yasar, that they reported to him from Abu Hurairah that the Prophet (ﷺ) said: "Whoever fasts a day in the cause of Allah, Allah shall distance him from the Fire by seventy autumns." One of them said "seventy" and the other said: "forty". [Abu 'Eisa said:] This Hadith is a Gharib Hadith from this route. Abu Al-Aswad's name is Muhammad bin 'Abdur-Rahman bin Nawfal Al-Asadi Al-Madani. There are narrations on this topic from Abu Sa'eed, Anas, 'Uqbah bin 'Amir, and Abu Umamah
مَنْ صَامَ يَوْمًا فِي سَبِيلِ اللَّهِ زَحْزَحَهُ اللَّهُ عَنِ النَّارِ سَبْعِينَ خَرِيفًا