Narrated Abdullah ibn Abbas: About the Quranic verse: "It is not lawful for you forcibly to inherit the woman (of your deceased kinsmen), nor (that) ye should put constraint upon them. When a man died, his relatives had more right to his wife then her own guardian. If any one of them wanted to marry her, he did so; or they married her (to some other person), and if they did not want to marry her, they did so. So this verse was revealed about the matter.
Hadith Referenceسنن ابي داود / كتاب النكاح / 2089
Hadith Gradingالألبانی:صحيح | زبیر علی زئی:صحيح بخاري (4579، 6948)
1؎ : From this hadith it is understood that if a man dies, his wife has the right to choose her own marriage; it is not permissible for the deceased’s relatives to forcibly marry her to themselves, nor do they have the right to prevent her from marrying.