“One of the wives of the Messenger of Allah ﷺ observed I’tikaf with him, and she used to see red and yellow discharge, and sometime she would put a basin beneath her.”  

عَائِشَةُ اعْتَكَفَتْ مَعَ رَسُولِ اللَّهِ ﷺ امْرَأَةٌ مِنْ نِسَائِهِ فَكَانَتْ تَرَى الْحُمْرَةَ وَالصُّفْرَةَ فَرُبَّمَا وَضَعَتْ تَحْتَهَا الطَّسْتَ