Hadith 1:178
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 ُ (177)
Original Reference: Bulugh al-Maram 149