Abdur Rahman ibn Yazid reported: Ibn Mas’ud, may Allah be pleased with him, said, “You strive for longer and you perform more prayers than the companions of the Messenger of Allah, peace and blessings be upon him, yet they are better than you.” They said, “Why is that?” Ibn Mas’ud said, “They were less interested in the world, and more desirous of the Hereafter than you.”
Source: al-Zuhd Ibn Abī al-Dunyā 237
عَنْ عَبْدِ الرَّحْمَنِ بْنِ يَزِيدَ عَنِ ابْنِ مَسْعُودٍ رَضِيَ اللَّهُ عَنْهُ قَالَ أَنْتُمْ أَطْوَلُ جِهَادًا وَأَكْثَرُ صَلاةً مِنْ أَصْحَابِ رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ وَكَانُوا خَيْرًا مِنْكُمْ قَالُوا وَلِمَ قَالَ كَانُوا أَزْهَدَ فِي الدُّنْيَا وَأَرْغَبَ فِي الآخِرَةِ مِنْكُمْ
237 الزهد لابن أبي الدنيا