﴿ هُمُ ٱلَّذِينَ كَفَرُوا۟ وَصَدُّوكُمْ عَنِ ٱلْمَسْجِدِ ٱلْحَرَامِ وَٱلْهَدْىَ مَعْكُوفًا أَن يَبْلُغَ مَحِلَّهُۥ ۚ وَلَوْلَا رِجَالٌۭ مُّؤْمِنُونَ وَنِسَآءٌۭ مُّؤْمِنَٰتٌۭ لَّمْ تَعْلَمُوهُمْ أَن تَطَـُٔوهُمْ فَتُصِيبَكُم مِّنْهُم مَّعَرَّةٌۢ بِغَيْرِ عِلْمٍۢ ۖ لِّيُدْخِلَ ٱللَّهُ فِى رَحْمَتِهِۦ مَن يَشَآءُ ۚ لَوْ تَزَيَّلُوا۟ لَعَذَّبْنَا ٱلَّذِينَ كَفَرُوا۟ مِنْهُمْ عَذَابًا أَلِيمًا ﴾

“[It was not for your enemies sake that He stayed your hands from them: for] it was they who were bent on denying the truth, and who debarred you from the Inviolable House of Worship and prevented your offering from reaching its destina­tion. And had it not been for the believing men and believing women [in Mecca], whom you might have unwittingly trampled underfoot, and on whose account you might have become guilty, without knowing it, of a grievous wrong-: [had it not been for this, you would have been allowed to fight your way into the city: but you were forbidden to fight] so that [in time] God might admit to His grace whomever He wills. Had they [who deserve Our mercy and they whom We have condemned] been clearly discernible [to you], We would indeed have imposed grievous suffering [at your hands] on such of them as were bent on denying the truth.”

Please check ayah 48:26 for complete tafsir.