Tafsir of Surah Al-Kahf 18:42
﴿وَأُحِيطَ بِثَمَرِهِ فَأَصْبَحَ يُقَلِّبُ كَفَّيْهِ عَلَىٰ مَا أَنفَقَ فِيهَا وَهِيَ خَاوِيَةٌ عَلَىٰ عُرُوشِهَا وَيَقُولُ يَا لَيْتَنِي لَمْ أُشْرِكْ بِرَبِّي أَحَدًا﴾
Translation of the meaning
And his fruits were encompassed [by ruin], so he began to turn his hands about [in dismay] over what he had spent on it, while it had collapsed upon its trellises, and said, "Oh, I wish I had not associated with my Lord anyone."
English Translation - Noor International Center — v1.1.2 · QuranEnc.comThe words of the two imams are given in their original Arabic, verbatim, with references.
Imam Ibn al-Qayyim
وما ذلك إلا ثمار الجنة.«طريق الهجرتين وباب السعادتين» 1/372What he quoted from others
قيل رجّح غيره «إن الثمار [هنا] وفى آية [البقرة: 266] المراد بها المنافع والأموال،»«طريق الهجرتين وباب السعادتين» 1/372