حَدَّثَنَا الْقَعْنَبِيُّ، عَنْ مَالِكٍ، عَنْ نَافِعٍ، عَنِ ابْنِ عُمَرَ، قَالَعِدَّةُ الْمُخْتَلِعَةِ حَيْضَةٌ ‏.‏

Ibn 'Umar said: "The waiting period of a woman who separates herself from her husband for compensation is one menstrual period."