Musannaf Ibn Abi Shaybah 20721 — Military campaigning: is it

Yazid bin Bishr al-Saksaki (may Allah have mercy on him) says: I came to Madinah and visited Sayyiduna Abdullah bin Umar (may Allah be pleased with him). At that time a man from Iraq came to him and said: O Abdullah bin Umar! What is the matter, that you perform Hajj and Umrah but have abandoned jihad in the way of Allah? Sayyiduna Ibn Umar (may Allah be pleased with him) said: Woe to you! Faith is built upon five things: that you worship Allah, establish the prayer, pay zakah, perform Hajj and fast in Ramadan. He repeated it to me and said: O servant of Allah! Worship Allah, establish the prayer, pay zakah, perform Hajj and fast in Ramadan. This is how the Messenger of Allah (peace and blessings be upon him) told us; after these, jihad is a good deed.