Quran 25:28 from Surah Al-Furqaan on Divine Marvels.
يَٰوَيۡلَتَىٰ لَيۡتَنِي لَمۡ أَتَّخِذۡ فُلَانًا خَلِيلٗا
English translation: O woe to me! I wish not I had taken that one (as) a friend
Transliteration: yawaylata laytani lam attakhidh fulanan khalilan