إِنْ كَانَتْ تَحِيضُ فَحَيْضَةٌ وَ إِنْ كَانَتْ لَا تَحِيضُ فَشَهْرٌ وَ نِصْفٌ.
“Abu ‘Abd Allah (a.s.), has said, ‘Waiting period in al-Mut‘ah (advantageous marriage) is one cycle of Hayd (menses) if she experiences Hayd (menses); and if she does not experience Hayd (menses) then it is one and a half month.’”