How can we reconcile the Prophet’s (peace be upon him) hadiths forbidding cursing and supplicating for non-Muslims, with what is understood from his saying, "and transfer its fever to Al-Juhfa"? Did the Messenger of Allah (peace be upon him) curse the people of Al-Juhfa? And why are general supplications against disbelievers made from the pulpits, when it is more appropriate to supplicate for their guidance unless they are fighting us, and when such supplications might alienate them from the religion?

It is permissible to supplicate against disbelievers in general with illnesses and afflictions and to curse them, as 'Umar ibn al-Khattab and other Imams did in Qunut. However, a specific disbeliever should not be cursed because one does not know what Allah will decree for him at the end, and this does not contradict supplicating for their guidance. The hadith "A believer is not a slanderer nor a curser" means that a believer does not curse those who do not deserve to be cursed, and it is better to supplicate for their guidance.