According to search-discovered classical Islamic scholarship, the principle of forgiving non-believers is a divine command that reflects the moral and spiritual strength of the faithful. The Quran, in Surah Al-Jathiyah (45:14), explicitly instructs believers to pardon those who cause them harm and do not anticipate the Day of Recompense, thereby entrusting the matter of justice to Allah Himself. Classical commentators like Al-Qurtubi explain this as a directive to rise above personal retaliation, allowing Allah to requite people for their deeds. This principle is powerfully illustrated in Surah Luqman (31:15), which commands believers to maintain kind and just companionship with their parents even if they are polytheists striving to turn them away from Islam. The synthesis of these verses establishes that while theological boundaries are firm, the believer's personal conduct should be one of forbearance and mercy, demonstrating the noble character central to the Islamic faith.