Dr. Mustafa Khattab, the Clear Quran - Surah Al-Ahzab, ayah 15

Translation of Surah Al-Ahzab, ayah 15 (33:15)

وَلَقَدۡ كَانُواْ عَٰهَدُواْ ٱللَّهَ مِن قَبۡلُ لَا يُوَلُّونَ ٱلۡأَدۡبَٰرَۚ وَكَانَ عَهۡدُ ٱللَّهِ مَسۡـُٔولٗا ١٥
They had already pledged to Allah earlier never to turn their backs ˹in retreat˺. And a pledge to Allah must be answered for.