Mujahid narrated that I expressed my intention to participate in jihad before Abdullah bin Umar (may Allah be pleased with them), so he said, "My heart desires that I also spend some of my wealth in this cause to help you." I said, "What Allah has given me is sufficient for me." But he said, "Your wealth is for you. I only wish that in this way my wealth may also be spent in the path of Allah." Umar (may Allah be pleased with him) said that many people take this wealth (from the treasury) on the condition that they will participate in jihad, but then they do not go for jihad. Therefore, whoever does this, we are more entitled to that wealth, and we will take back the wealth that he took (from the treasury). Tawus and Mujahid said that if something is given to you on the condition that you will go out for jihad in return, then you may spend it wherever you wish, and you may also use it for the needs of your family (but participation in jihad according to the condition is necessary).

Narrated `Umar bin Al-Khattab: I gave a horse to be used in Allah's Cause, but later on I saw it being sold. I asked the Prophet whether I could buy it. He said, "Don't buy it and don't take back your gift of charity."

Narrated `Abdullah bin `Umar: `Umar gave a horse to be used in Allah's Cause, but later on he found it being sold. So, he intended to buy it and asked Allah's Apostle who said, "Don't buy it and don't take back your gift of charity."

Narrated Abu Huraira: Allah's Apostle said, "Were it not for the fear that it would be difficult for my followers, I would not have remained behind any Sariya, (army-unit) but I don't have riding camels and have no other means of conveyance to carry them on, and it is hard for me that my companions should remain behind me. No doubt I wish I could fight in Allah's Cause and be martyred and come to life again to be martyred and come to life once more."

Imam Hasan al-Basri and Ibn Sirin said that a laborer will also be given a share from the spoils of war. Atiyyah bin Qays took a horse on the condition of receiving half of the share (from the spoils of war). The horse’s share amounted to four hundred dinars (from the spoils after victory). Atiyyah kept two hundred dinars for himself and gave two hundred to the owner of the horse.

Narrated Yali: I participated in the Ghazwa of Tabuk along with Allah's Apostle and I gave a young camel to be ridden in Jihad and that was, to me, one of my best deeds. Then I employed a laborer who quarrelled with another person. One of them bit the hand of the other and the latter drew his hand from the mouth of the former pulling out his front tooth. Then the former instituted a suit against the latter before the Prophet who rejected that suit saying, "Do you expect him to put out his hand for you to snap as a male camel snaps (vegetation)?"

Narrated Tha`laba bin Abi Malik Al-Qurazi: When Qais bin Sa`d Al-Ansari, who used to carry the flag of the Prophet, intended to perform Hajj, he combed his hair.

Narrated Salama bin Al-Akwa: Ali remained behind the Prophet during the battle of Khaibar as he way suffering from some eye trouble but then he said, "How should I stay behind Allah's Apostle?" So, he set out till he joined the Prophet. On the eve of the day of the conquest of Khaibar, Allah's Apostle said, "(No doubt) I will give the flag or, tomorrow, a man whom Allah and His Apostle love or who loves Allah and His apostle will take the flag. Allah will bestow victory upon him." Suddenly 'Ali joined us though we were not expecting him. The people said, "Here is 'Ali. "So, Allah's Apostle gave the flag to him and Allah bestowed victory upon him.

Narrated Nafi bin Jubair: I heard Al Abbas telling Az-Zubair, "The Prophet ordered you to fix the flag here."

And the statement of Allah, the Exalted «سنلقي في قلوب الذين كفروا الرعب بما أشركوا بالله» : "Soon We shall cast terror into the hearts of those who disbelieve, because they joined partners with Allah!" Jabir (may Allah be pleased with him) narrated this hadith from the Prophet (peace and blessings of Allah be upon him).