Hadith 8:2007
Abu Bakr narrated to us, he said: Abd al-Wahhab al-Thaqafi narrated to us, from Habib al-Mu'allim, who said: I asked about the woman divorced three times and the woman whose husband has died, whether they may perform Hajj during their waiting period (iddah). He said: Yes. Habib said: And al-Hasan used to say that.
حدثنا أبو بكر قال حدثنا عبد الوهاب الثقفي عن حبيب المعلم قال سألت عن المطلقة ثلاثا والمتوفى عنها تحجان في عدتهما فقال نعم قال حبيب وكان الحسن يقول ذلك