وَعَنْ مُعَاذٍ رضى الله عنه
«أَنَّهُ سَأَلَ اَلنَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: مَا يَحِلُّ لِلرَّجُلِ مِنِ اِمْرَأَتِهِ، وَهِيَ حَائِضٌ? قَالَ: «مَا فَوْقَ اَلْإِزَارِ»
He asked the Prophet (sallallahu alayhi wa sallam), “What is lawful for a man regarding his wife when she is menstruating?” and he replied, “What is above the waist wrapper (Izar).”