Quran 9:38 At-Tawbah, ayah 38 of 129

يَـٰٓأَيُّهَا ٱلَّذِينَ ءَامَنُوا۟ مَا لَكُمْ إِذَا قِيلَ لَكُمُ ٱنفِرُوا۟ فِى سَبِيلِ ٱللَّهِ ٱثَّاقَلْتُمْ إِلَى ٱلْأَرْضِ ۚ أَرَضِيتُم بِٱلْحَيَوٰةِ ٱلدُّنْيَا مِنَ ٱلْـَٔاخِرَةِ ۚ فَمَا مَتَـٰعُ ٱلْحَيَوٰةِ ٱلدُّنْيَا فِى ٱلْـَٔاخِرَةِ إِلَّا قَلِيلٌ ۝٣٨

9:38 O ye who believe! What aileth you that when it is said unto you: Go forth in the way of Allah, ye are bowed down to the ground with heaviness. Take ye pleasure in the life of the world rather than in the Hereafter? The comfort of the life of the world is but little in the Hereafter.