Hadithcore
Sunan Abi Dawud, 2230
sahih· Al-Albani

Ibn ‘Umar said “The waiting period of a woman who separates herself from her husband for compensation is a menstrual period.”

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

References2 variants
In-Book Reference
Book 13, Hadith 56
English Reference
Book 12, Hadith 2222