We know best what they say; and thou art not one to overawe them by force. So admonish with the Qur'an such as fear My Warning!
ما به آنچه مى‌گويند داناتريم و تو به آنها زور نمى‌گويى. پس هر كه را از وعده عذاب من مى‌ترسد به قرآن اندرز ده.