Surah Al-Ahzab (The Enemy Alliance), Verse 23

مِنَ الْمُؤْمِنِیْنَ رِجَالٌ صَدَقُوْا مَا عَاهَدُوا اللّٰهَ عَلَیْهِ فَمِنْهُمْ مَّنْ قَضٰی نَحْبَهٗ وَمِنْهُمْ مَّنْ یَّنْتَظِرُ وَمَا بَدَّلُوْا تَبْدِیْلًا ۟

Minal mu'mineena rijaalun sadaqoo maa 'aahadul laaha 'alaihi faminhum man qadaa nahbahoo wa minhum mai yantaziru wa maa baddaloo tabdeelaa

“Among the Believers are men who have been true to their covenant with Allah: of them some have completed their vow (to the extreme), and some (still) wait: but they have never changed (their determination) in the least:”

Quran 33:23 (Yusuf Ali Translation)