Tafsir of Surah Al-Kahf 18:104
﴿الَّذِينَ ضَلَّ سَعْيُهُمْ فِي الْحَيَاةِ الدُّنْيَا وَهُمْ يَحْسَبُونَ أَنَّهُمْ يُحْسِنُونَ صُنْعًا﴾
Translation of the meaning
[They are] those whose effort is lost in worldly life, while they think that they are doing well in work."
English Translation - Noor International Center — v1.1.2 · QuranEnc.comThe words of the two imams are given in their original Arabic, verbatim, with references.
Shaykh al-Islam Ibn Taymiyyah
What he quoted from others
سعد بن أبي وقاص وغيره من السلف حكاه «نزلت في أصحاب الصوامع والديارات.»«الفتاوى الكبرى لابن تيمية» 1/191