Sahih al-Bukhari 1755
Narrated Ibn `Abbas:
The people were ordered to perform the Tawaf of the Ka`ba (Tawaf-al-Wada`) as the lastly thing, 
before leaving (Mecca), except the menstruating women who were excused.
حَدَّثَنَا مُسَدَّدٌ، حَدَّثَنَا سُفْيَانُ، عَنِ ابْنِ طَاوُسٍ، عَنْ أَبِيهِ، عَنِ ابْنِ عَبَّاسٍ ـ رضى الله عنهما ـ قَالَ أُمِرَ النَّاسُ أَنْ يَكُونَ آخِرُ عَهْدِهِمْ بِالْبَيْتِ، إِلاَّ أَنَّهُ خُفِّفَ عَنِ الْحَائِضِ‏.‏