حَدَّثَنِي يَحْيَى، عَنْ مَالِكٍ، عَنْ أَبِي الزِّنَادِ، عَنِ الأَعْرَجِ، عَنْ أَبِي هُرَيْرَةَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ ‏"‏ مَثَلُ الْمُجَاهِدِ فِي سَبِيلِ اللَّهِ كَمَثَلِ الصَّائِمِ الْقَائِمِ الدَّائِمِ الَّذِي لا يَفْتُرُ مِنْ صَلاَةٍ وَلاَ صِيَامٍ حَتَّى يَرْجِعَ ‏"‏ ‏.‏

Yahya related to me from Malik from Abu'z-Zinad from al-Araj fromAbu Hurayra that the Messenger of Allah, may Allah bless him and granthim peace, said "Someone who does jihad in the way of Allah is likesomeone who fasts and prays constantly and who does not slacken fromhis prayer and fasting until he returns." Translation Not Available

Book Ref: Muwatta Imam Malik Book 21 Hadith 962
Web Ref:  Muwatta Imam Malik Book 21 Hadith 1