Shaykh Yahya al Hajooree (Hafidullah) said:
Every time I call one of the fighters I said:
Be careful not to overstate, stand firm and remember Allah much. During the confrontation so that you may succeed.
As Allah says
يا أيها الذين آمنوا إذا لقيتم فئة فاثبتوا واذكروا الله كثيرا لعلكم تفلحون
O you who believe! When you meet (an enemy) force, take a firm stand against them and remember the Name of Allâh much (both with tongue and mind), so that you may be successful. (Al-Anfal 8:45)
One of the brothers addressing the Shaykh wrote:
O Sheikh Yahya: We can tell you that your call for jihad was heard and people flooding into the battlefield. of them some have fulfilled their obligations (i.e. have been martyred), and some of them are still waiting, but they have never changed [i.e. they never proved treacherous to their covenant which they concluded with Allâh] in the least. (Al-Ahzab 33:23)
By Allah, O Sheikh: there are young people who come crying bitterly because they do not find weapons.
O Sheikh: the blood of those who have learned the Qur’an has not flowed in vain.
Crying babies and panicking women will not be in vain. And there is no victory except from Allâh