Surah Az-Zumar, Ayah 65
Quran 39:65 · The Troops · Makki · Para 24 · Page 465
وَلَقَدْ اُوْحِیَ اِلَیْكَ وَاِلَی الَّذِیْنَ مِنْ قَبْلِكَ ۚ لَىِٕنْ اَشْرَكْتَ لَیَحْبَطَنَّ عَمَلُكَ وَلَتَكُوْنَنَّ مِنَ الْخٰسِرِیْنَ ۟
Transliteration
Walaqad oohiya ilayka wa-ilaallatheena min qablika la-in ashrakta layahbatannaAAamaluka walatakoonanna mina alkhasireen
Saheeh International
And it was already revealed to you and to those before you that if you should associate [anything] with Allāh, your work would surely become worthless, and you would surely be among the losers.
Al-Mukhtasar fi Tafsir
Allah had revealed to you, O Messenger, and to the messengers before you: If you worship others together with Allah the reward of your good deeds will be void and you will be of the losers in the world due to the loss of your religion and in the Hereafter due to the punishment.
Tafsir Ibn Kathir (abridged)
Explains 39:62–39:66 together — read it on 39:62