´It was narrated that' Abdullah bin Mas'ud said:` "By Allah, for those who would like to go through the process of praying for Allah's curse to be upon the one who is wrong, the shorter Surah concerning women[l] was revealed after (the Verses[2] which speak of the waiting period of) four months and ten (days)." [1] (65:40), [2] (2:234)
Hadith Referenceسنن ابن ماجه / كتاب الطلاق / 2030
Hadith Gradingالألبانی:صحيح | زبیر علی زئی:ضعيف, إسناده ضعيف, سنن أبي داود (2307), انوار الصحيفه، صفحه نمبر 451
1؎: And in Surah At-Talaq, this verse «وَأُوْلاتُالأَحْمَالِأَجَلُهُنَّأَنيَضَعْنَحَمْلَهُنَّ» (Surah At-Talaq: 4) will be considered as abrogating (nasikh) the previous verse in the case of pregnant women; however, for non-pregnant women, the waiting period (‘iddah) after the husband's death is four months and ten days.
Explanation & Benefits
Maulana Ataullah Sajid
Benefits and Issues: ➊ In Surah At-Talaq, the ruling is that the waiting period (‘iddah) for pregnant women is until delivery. This ruling was revealed later. The verse in Surah Al-Baqarah, in which it is stated that the waiting period for a widow is four months and ten days (Al-Baqarah 2:234), was revealed earlier. Therefore, if a pregnant woman's husband passes away, her waiting period is not four months and ten days, but rather until she delivers, regardless of whether the duration of the pregnancy is short or long. And this is the correct ruling.
➋ For a woman who is not pregnant and whose husband passes away, the ruling remains that she must observe a waiting period of four months and ten days, whether she had moved in with her husband (rukhsati) or only the marriage contract (nikah) had taken place and rukhsati had not occurred.
Source: Commentary on Sunan Ibn Mājah by Mawlānā ‘Atā’ullāh Sājid, Page: 2030