If a woman gets menses thrice a month

لِقَوْلِ اللَّهِ تَعَالَى: {وَلاَ يَحِلُّ لَهُنَّ أَنْ يَكْتُمْنَ مَا خَلَقَ اللَّهُ فِي أَرْحَامِهِنَّ}. وَيُذْكَرُ عَنْ عَلِيٍّ وَشُرَيْحٍ إِنِ امْرَأَةٌ جَاءَتْ بِبَيِّنَةٍ مِنْ بِطَانَةِ أَهْلِهَا مِمَّنْ يُرْضَى دِينُهُ، أَنَّهَا حَاضَتْ ثَلاَثًا فِي شَهْرٍ. صُدِّقَتْ. وَقَالَ عَطَاءٌ أَقْرَاؤُهَا مَا كَانَتْ، وَبِهِ قَالَ إِبْرَاهِيمُ. وَقَالَ عَطَاءٌ الْحَيْضُ يَوْمٌ إِلَى خَمْسَ عَشْرَةَ. وَقَالَ مُعْتَمِرٌ عَنْ أَبِيهِ سَأَلْتُ ابْنَ سِيرِينَ عَنِ الْمَرْأَةِ تَرَى الدَّمَ بَعْدَ قَرْئِهَا بِخَمْسَةِ أَيَّامٍ قَالَ النِّسَاءُ أَعْلَمُ بِذَلِكَ.Can we believe a woman if she says she is menstruating or pregnant, and whatever is related to menses as is referred to by the Statement of Allah جل جلاله: “…And it is not lawful for them to conceal what Allah has created in their wombs…” (V.2:228). ‘Ali and Shuraih said, “If a woman presents witness from her relatives who are good Muslims that she is getting menses thrice a month then she is to be believed.” ‘Ata said, “Her previous menstrual cycles are to be taken into consideration.” The same was said by Ibrahim. ‘Ata said, “Menses can last from one to fifteen days.” Ibn Sirin was asked about a woman who noticed blood five days after her menstrual cycle. He replied: The women knew better about that. ​