Bulugh al-Maram, Book 1, Hadith 9 (In-Book)

Narrated Ibn ‘Abbas (rad): Narrated Ibn ‘Abbas (rad): The Prophet used to bath with the water left over by Maimuna (rad) [Muslim reported it].

وَعَنْ اِبْنِ عَبَّاسٍ رَضِيَ اَللَّهُ عَنْهُمَا; { أَنَّ اَلنَّبِيَّ ‏- صلى الله عليه وسلم ‏-كَانَ يَغْتَسِلُ بِفَضْلِ مَيْمُونَةَ رَضِيَ اَللَّهُ عَنْهَا } أَخْرَجَهُ مُسْلِمٌ (13)‏.‏ ‏5 ‏- صحيح.‏ رواه مسلم (323)‏.‏

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also referenced under: Book 1, Hadith 10 (English)