[2] i.e., ’Um Jamīl, who used to throw thorny branches in the Prophet's way and she used to slander him (ﷺ). The word hatab (firewood) was used by the Arabs to allude to slander and backbiting.
[3] This surah was one of the earliest surahs revealed in Makkah, yet Abu Lahab persisted in disbelief. For him to disprove the Qur’an, all he had to do was to accept Islam, for the Qur’an condemned him to Hell.