Why are you weeping when Allah has granted victory to you and caused you to prevail over your enemies and granted you joy? 'Umar said: I heard the Messenger of Allah ﷺ say: ʿAccumulation of worldly luxuries does not become available to any people but Allah, may He Be glorified and exalted, stirs up among them enmity and hatred until the Day of Resurrection, and that concerns me.ʿ
لَهُ مَنْ عِنْدَهُ لِمَ تَبْكِي وَقَدْ فَتَحَ اللهُ لَكَ وَأَظْهَرَكَ عَلَى عَدُوِّكَ وَأَقَرَّ عَيْنَكَ؟ فَقَالَ عُمَرُ إِنِّي سَمِعْتُ رَسُولَ اللهِ ﷺ يَقُولُ لَا تُفْتَحُ الدُّنْيَا عَلَى أَحَدٍ إِلَّا أَلْقَى الله ﷻ بَيْنَهُمُ الْعَدَاوَةَ وَالْبَغْضَاءَ إِلَى يَوْمِ الْقِيَامَةِ وَأَنَا أُشْفِقُ مِنْ ذَلِكَ