Before the conquest of Mecca, whoever believed did not complete his faith except by migrating and severing ties with his disbelieving relatives and cutting off their allegiance. They said, 'O Messenger of Allah, if we separate from those who oppose us in religion, we will cut off our fathers, our sons, our clans, and our trade will be lost, our wealth will perish, and our homes will be abandoned, leaving us lost.' Then it was revealed, 'So migrate.' A man would come to him, his son or father or brother or some of his relatives, and he would not pay attention to him, nor would he take him in, nor provide for him. Then it was made permissible for them after that. It was said that it was revealed concerning the nine who apostatized and joined Mecca. [This was also mentioned by al-Thalabi from Muqatil, and his chain to him is at the beginning of the book.] So Allah, the Exalted, forbade allegiance to them.

And from the Prophet, blessings and peace be upon him, 'None of you truly tastes the flavor of faith until he loves for the sake of Allah and hates for the sake of Allah: until he loves for the sake of Allah the most distant of people, and hates for the sake of Allah the closest of people to him.' [I did not find it in this wording, but in al-Tabarani from Amr ibn al-Hamq, he heard the Messenger of Allah, blessings and peace be upon him, say, 'A servant does not find the essence of faith until he loves for the sake of Allah and hates for the sake of Allah,' and in its chain is Rushd ibn Sa'd, who is weak. And there are narrations on this from Abu Umamah reported by Abu Dawood, and from Mu'adh ibn Anas reported by Abu Ya'la and others.] And it was recited: 'Your clan' and 'your clans.'

Al-Hasan read: 'and your clans.' So wait until Allah brings about His command, a warning. Ibn Abbas said: It is the conquest of Mecca. And al-Hasan said: They are a punishment, whether immediate or delayed. This is a severe verse; you do not see one harsher than it, as if it is reproaching people for their laxity in the bond of faith and the instability of the rope of certainty. Let the most pious and God-fearing of people be fair with himself: does he find in himself the firmness for the sake of Allah and steadfastness in the religion of Allah that he prefers his religion over his fathers, sons, brothers, clans, wealth, homes, and all worldly possessions, and detach himself from them for His sake? Or does Allah keep from him the slightest of these for his benefit, so he does not know which end of it is longer? And the devil misleads him from the greatest share of the shares of faith, so he does not care as if a fly has landed on his nose and he swats it away?