Ghaylān ibn Salamah Ath-Thaqafi embraced Islam and he had ten wives from the pre-Islamic period of ignorance, and they all embraced Islam with him. The Prophet (may Allah's peace and blessings be upon him) commanded him to choose four of them.
[Ibn Maajah]
Original Hadith
"عن ابن عمر، أن غَيْلَانَ بن سَلَمَةَ الثقفي أَسْلَمَ وله عشر نِسْوَةٍ في الجاهلية، فَأَسْلَمْنَ معه، « فَأَمَرَهُ النبي -صلى الله عليه وسلم- أن يَتَخَيَّرَ أربعا مِنْهُنَّ».
[صحيح.] - [رواه الترمذي وابن ماجه وأحمد.]"