Is it the case that anyone who gave up something for the sake of Allah, if a benefit then appears for him, is allowed to return to it?

Question : The meaning of that is: Is it measured by the principle that anyone who gave up something for the sake of Allah, the Exalted, is not allowed to return to it even if a benefit appears for him?

Answer : As for money, it is not possible to return to it; money is not something one can return to. There is the hadith of 'Umar regarding the story of the horse he rode in the cause of Allah, which the person to whom he gave it lost. He wanted to buy it back, so the Prophet (peace and blessings be upon him) said to him: "Do not return to your charity, even if he gave it to you for a dirham." As for land, as long as the reason remains, there is no doubt that it is not permissible to return to it. But if the land of Islam returns, that is the point of difficulty. As for the emigrants from Makkah, they do not return, by the explicit text of the hadith, while the case of others is a matter for consideration.