Wanita yang haidnya tidak teratur, harus ber'iddah beberapa quru (sesuai kebiasaannya berapa lama ia mengalami haid)
Imam Darimi : 902أَخْبَرَنَا إِسْحَقُ بْنُ عِيسَى أَخْبَرَنَا هُشَيْمٌ عَنْ يُونُسَ عَنْ الْحَسَنِ قَالَ الْمُسْتَحَاضَةُ تَعْتَدُّ بِالْأَقْرَاءِ
Narrated to us [Ishaq bin Isa] narrated to us [Hushaym]based on the history of Yunus, based on the history of al-Hasan, which said: A woman who experiences prolonged menstrual bleeding should calculate her iddah period according to the number of menstrual cycles.