Dhahhak (may Allah have mercy on him) says that previously, when a person passed away, his wife would be provided for during a whole year, then the heirs would distribute the inheritance. Then this verse was revealed: ﴿And those of you who die and leave wives behind, a bequest to their wives of maintenance for a year without being turned out﴾, then this ruling was abrogated and this verse was revealed: ﴿And those of you who die and leave wives behind, they shall wait by themselves for four months and ten days﴾, then regarding this ruling of four months and ten days, this verse was revealed: ﴿And for those who are pregnant, their term is until they deliver their burden﴾, meaning if they give birth before that, their waiting period is completed.
Hadith Referenceسنن سعید بن منصور / كتاب التفسير / 415
Hadith Gradingمحدثین:سنده ضعيف جدًّا لشدة ضعف جويبر، وإعضاله؛ لأن الضحاك لم يسمع من أحد من الصحابة، كما في الحديث [٤٨١]