The Messenger of Allah ﷺ said, "Take up your shield."We asked, "Messenger of Allah, against an enemy who has come upon us?"He replied, "No, your shield against the Fire. Say, 'Glory be to Allah, praise be to Allah, there is no god but Allah, and Allah is greatest.' For these words will come on the Day of Resurrection as deliverers and forerunners, and they are the enduring good deeds."
قال رسول الله ﷺ: خذوا جنتكم، قلنا: يا رسول الله من عدو قد حضر قال: لا جنتكم من النار، قولوا: سبحان الله، و الحمد الله، و لا إله إلا الله، والله أكبر، فإنها يأتين يوم القيامة منجيات و مقدمات وهن الباقيات الصالحات.
No references are available.
Hakim (1/541) narrated it from Muhammad bin Salih bin Hani, who said, Yahya bin Muhammad bin Yahya told us, Abu Umar Hafs bin Umar told us, Abdul-Aziz bin Muslim told us, Muhammad bin Ajlan told us, from Saeed bin Abu Saeed Maqburi, from Abu Hurairah who said, and then he mentioned it.Hakim said, "This is a sahih hadith according to the criterion of Muslim, and the two of them did not narrate it." Its chain is hasan because of Muhammad bin Ajlan, for his hadith is hasan.