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."
USC-MSA web (English) reference: Book 21, Hadith 1
Arabic reference: Book 21, Hadith 962