And already had Allah given you victory at [the battle of] Badr (3:123)

﴿وَلَقَدْ نَصَرَكُمُ اللَّهُ بِبَدْرٍ وَأَنتُمْ أَذِلَّةٌ ۖ فَاتَّقُوا اللَّهَ لَعَلَّكُمْ تَشْكُرُونَ﴾
[ آل عمران: 123]

3:123 And already had Allah given you victory at [the battle of] Badr while you were few in number. Then fear Allah; perhaps you will be grateful.

Allah gave you victory over the idolaters in the Battle of Badr despite your small numbers and resources.
Therefore, be Mindful so that you may be thankful for the blessings He has given you.

And Allah has already made you victorious at Badr, when you were a weak little force. So fear Allah much [abstain from all kinds of sins and evil deeds which He has forbidden and love Allah much, perform all kinds of good deeds which He has ordained] that you may be grateful.

phonetic Transliteration

Walaqad nasarakumu Allahu bibadrin waantum athillatun faittaqoo Allaha laAAallakum tashkuroona

Abdullah Yusuf Ali - Translation

Allah had helped you at Badr, when ye were a contemptible little force; then fear Allah; thus May ye show your gratitude.

Safi-ur-Rahman al-Mubarakpuri

And Allah has already made you victorious at Badr, when you were a weak little force. So have Taqwa of Allah that you may be grateful.

Page 66 English transliteration