Sahih Bukhari Volume 2, Book 25, Hadith 1760

حَدَّثَنَا أَبُو النُّعْمَانِ، حَدَّثَنَا حَمَّادٌ، عَنْ أَيُّوبَ، عَنْ عِكْرِمَةَ، أَنَّ أَهْلَ الْمَدِينَةِ، سَأَلُوا ابْنَ عَبَّاسٍ ـ رضى الله عنهما ـ عَنِ امْرَأَةٍ، طَافَتْ ثُمَّ حَاضَتْ، قَالَ لَهُمْ تَنْفِرُ‏.‏ قَالُوا لاَ نَأْخُذُ بِقَوْلِكَ وَنَدَعَ قَوْلَ زَيْدٍ‏.‏ قَالَ إِذَا قَدِمْتُمُ الْمَدِينَةَ فَسَلُوا‏.‏ فَقَدِمُوا الْمَدِينَةَ فَسَأَلُوا، فَكَانَ فِيمَنْ سَأَلُوا أُمُّ سُلَيْمٍ، فَذَكَرَتْ حَدِيثَ صَفِيَّةَ‏.‏ رَوَاهُ خَالِدٌ وَقَتَادَةُ عَنْ عِكْرِمَةَ‏

Narrated By 'Ikrima : The people of Medina asked Ibn Abbas about a woman who got her menses after performing Tawaf-al-Ifada. He said, "She could depart (from Mecca)." They said, "We will not act on your verdict and ignore the verdict of Zaid." Ibn Abbas said, "When you reach Medina, inquire about it." So, when they reached Medina they asked (about that). One of those whom they asked was Um Sulaim. She told them the narration of Safiya (812).