Narrated Mu'adh Ibn Jabal (RAA):

He asked the Prophet (Peace be upon him), “What is lawful for a man regarding his wife when she is menstruating?" and he replied, "What is above the waist wrapper (Izar).”[13] [Reported by Abu Da'ud and graded it Da'if.]

وَعَنْ مُعَاذٍ ‏- رضى الله عنه ‏- { أَنَّهُ سَأَلَ اَلنَّبِيَّ ‏- صلى الله عليه وسلم ‏-مَا يَحِلُّ لِلرَّجُلِ مِنِ اِمْرَأَتِهِ, وَهِيَ حَائِضٌ? قَالَ:

مَا فَوْقَ اَلْإِزَارِ

} رَوَاهُ أَبُو دَاوُدَ وَضَعَّفَه ُ [1]‏ .‏