Quran Ali 'Imran 3:124

إِذۡ تَقُولُ لِلۡمُؤۡمِنِينَ أَلَن يَكۡفِيَكُمۡ أَن يُمِدَّكُمۡ رَبُّكُم بِثَلَٰثَةِ ءَالَٰفٖ مِّنَ ٱلۡمَلَٰٓئِكَةِ مُنزَلِينَ

Translation

[Remember] when you said to the believers, "Is it not sufficient for you that your Lord should reinforce you with three thousand angels sent down?