Surat At-Tawbah (40-41)

{إِلاَّ تَنصُرُوهُ فَقَدْ نَصَرَهُ اللّهُ إِذْ أَخْرَجَهُ الَّذِينَ كَفَرُواْ ثَانِيَ اثْنَيْنِ إِذْ هُمَا فِي الْغَارِ إِذْ يَقُولُ لِصَاحِبِهِ لاَ تَحْزَنْ إِنَّ اللّهَ مَعَنَا فَأَنزَلَ اللّهُ سَكِينَتَهُ عَلَيْهِ وَأَيَّدَهُ بِجُنُودٍ لَّمْ تَرَوْهَا وَجَعَلَ كَلِمَةَ الَّذِينَ كَفَرُواْ السُّفْلَى وَكَلِمَةُ اللّهِ هِيَ الْعُلْيَا وَاللّهُ عَزِيزٌ حَكِيمٌ} [التوبة: 40]

40- If they do not respond to the call of His Messenger when he called you to go for Jihad and refuse to support him, Allah shall support him and provide him with victory as He protected him upon leaving Makkah. Allah gave him permission to migrate from Makkah to Medina in the company of Abu Bakr (may Allah be pleased with him) who feared for him from the polytheists who wanted to kill him. The Messenger (peace be upon him) said to him while they were in the cave: O Abu Bakr, what do you think of two men, the third of them is Allah?

So, Allah sent down His Security and Comfort on His Prophet and provided him with angels to guard him and make him firm, and failed the plot and conspiracy of the disbelievers. Allah made their word inferior, rescued him and made him secure, and they returned as losers. The word of Allah (the truth and monotheism) is the superior and nothing can make it inferior, for the truth cannot be changed and right cannot be changed to falsehood.

Allah is the Almighty and nothing can fail him, and He is wise in all His Commands.

{انْفِرُواْ خِفَافاً وَثِقَالاً وَجَاهِدُواْ بِأَمْوَالِكُمْ وَأَنفُسِكُمْ فِي سَبِيلِ اللّهِ ذَلِكُمْ خَيْرٌ لَّكُمْ إِن كُنتُمْ تَعْلَمُونَ} [التوبة: 41]

41- Go for Jihad, no matter your state: Young, old, poor, rich when the Messenger of Allah summon you to fight the Romans. Strive hard with your money by purchasing weapons for Mujahedeen and with yourselves, for striving is better for you in the sight of your Lord.

Some commentators said that the Ayah was abrogated.