Qur'ān 17:31 · Al-Isra (الإسراء)

وَلَا تَقْتُلُوٓا۟ أَوْلَـٰدَكُمْ خَشْيَةَ إِمْلَـٰقٍۢ ۖ نَّحْنُ نَرْزُقُهُمْ وَإِيَّاكُمْ ۚ إِنَّ قَتْلَهُمْ كَانَ خِطْـًۭٔا كَبِيرًۭا

And do not kill your children for fear of poverty. We provide for them and for you. Indeed, their killing is ever a great sin.