Sunan Abi Dawud 2230
سنن أبي داود#2230Sahihحَدَّثَنَا الْقَعْنَبِيُّ، عَنْ مَالِكٍ، عَنْ نَافِعٍ، عَنِ ابْنِ عُمَرَ، قَالَ عِدَّةُ الْمُخْتَلِعَةِ حَيْضَةٌ .
Ibn ‘Umar said “The waiting period of a woman who separates herself from her husband for compensation is a menstrual period.”
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
Al-AlbaniSahih Muquf
Muhammad Muhyi Al-Din Abdul HamidSahih Muquf
Shuaib Al ArnautSahih Muquf
Zubair Ali ZaiIsnaad Sahih
In-book reference: 13:56