Surah Hud (Hud), Verse 12

فَلَعَلَّكَ تَارِكٌ بَعْضَ مَا یُوْحٰۤی اِلَیْكَ وَضَآىِٕقٌ بِهٖ صَدْرُكَ اَنْ یَّقُوْلُوْا لَوْلَاۤ اُنْزِلَ عَلَیْهِ كَنْزٌ اَوْ جَآءَ مَعَهٗ مَلَكٌ اِنَّمَاۤ اَنْتَ نَذِیْرٌ وَاللّٰهُ عَلٰی كُلِّ شَیْءٍ وَّكِیْلٌ ۟

Fala'allaka taarikum ba'da maa yoohaaa ilaika wa daaa'iqum bihee sadruka ai yaqooloo law laaa unzila 'alaihi kanzun aw jaaa'a ma'ahoo malak; innamaa anta nazeer; wallaahu 'alaa kulli shai'inw wakeel

“Perchance thou mayest (feel the inclination) to give up a part of what is revealed unto thee, and thy heart feeleth straitened lest they say, "Why is not a treasure sent down unto him, or why does not an angel come down with him?" But thou art there only to warn! It is Allah that arrangeth all affairs!”

Quran 11:12 (Yusuf Ali Translation)