Al Fath Ayah 18

۞ لَّقَدْ رَضِىَ ٱللَّهُ عَنِ ٱلْمُؤْمِنِينَ إِذْ يُبَايِعُونَكَ تَحْتَ ٱلشَّجَرَةِ فَعَلِمَ مَا فِى قُلُوبِهِمْ فَأَنزَلَ ٱلسَّكِينَةَ عَلَيْهِمْ وَأَثَـٰبَهُمْ فَتْحًا قَرِيبًا ١٨ Indeed, Allah was pleased with the believers when they pledged allegiance to you ?O Prophet? under the tree. He knew what was in their hearts, so He sent down serenity upon them and rewarded them with a victory at hand,