Quran 18:72 from Surah Al-Kahf on Divine Marvels.
قَالَ أَلَمۡ أَقُلۡ إِنَّكَ لَن تَسۡتَطِيعَ مَعِيَ صَبۡرٗا
English translation: He said Did not I say indeed you never will be able with me (to have) patience
Transliteration: qala alam aqul innaka lan tastati'a ma'iya sabran