﴿ إِذْ تَسْتَغِيثُونَ رَبَّكُمْ فَٱسْتَجَابَ لَكُمْ أَنِّى مُمِدُّكُم بِأَلْفٍۢ مِّنَ ٱلْمَلَٰٓئِكَةِ مُرْدِفِينَ ﴾

“Lo! You were praying unto your Sustainer for aid, whereupon He thus responded to you: "I shall, verily, aid you with a thousand angels following one upon' another!"”

Please check ayah 8:10 for complete tafsir.