[Remember] when your Lord inspired to the angels, "I am with you, (8:12)

﴿إِذْ يُوحِي رَبُّكَ إِلَى الْمَلَائِكَةِ أَنِّي مَعَكُمْ فَثَبِّتُوا الَّذِينَ آمَنُوا ۚ سَأُلْقِي فِي قُلُوبِ الَّذِينَ كَفَرُوا الرُّعْبَ فَاضْرِبُوا فَوْقَ الْأَعْنَاقِ وَاضْرِبُوا مِنْهُمْ كُلَّ بَنَانٍ﴾
[ الأنفال: 12]

8:12 [Remember] when your Lord inspired to the angels, "I am with you, so strengthen those who have believed. I will cast terror into the hearts of those who disbelieved, so strike [them] upon the necks and strike from them every fingertip."

Remember O Prophet when Allah inspired the angels, who He reinforced the believers with in the Battle of Badr, telling the angels: I am with you.
aiding you with help and support, so strengthen the determination of the believers in fighting their enemy.
I will cast great fear into the hearts of those who disbelieve.
Strike then the necks of the disbelievers to kill them and hit their joints and limbs to hinder them from fighting.

(Remember) when your Lord inspired the angels, "Verily, I am with you, so keep firm those who have believed. I will cast terror into the hearts of those who have disbelieved, so strike them over the necks, and smite over all their fingers and toes."

phonetic Transliteration

Ith yoohee rabbuka ila almalaikati annee maAAakum fathabbitoo allatheena amanoo saolqee fee quloobi allatheena kafaroo alrruAAba faidriboo fawqa alaAAnaqi waidriboo minhum kulla bananin

Abdullah Yusuf Ali - Translation

Remember thy Lord inspired the angels (with the message): "I am with you: give firmness to the Believers: I will instil terror into the hearts of the Unbelievers: smite ye above their necks and smite all their finger-tips off them."

Safi-ur-Rahman al-Mubarakpuri

(Remember) when your Lord revealed to the angels, "Verily, I am with you, so keep firm those who have believed. I will cast terror into the hearts of those who have disbelieved, so strike them over the necks, and smite over all their fingers and toes."

Page 178 English transliteration