Musannaf Ibn Abi Shayba 9:1507

Abu Bakr narrated to us, he said: Abu Khalid al-Ahmar narrated to us, from Isma'il ibn Nafi', from Zayd ibn Aslam, he said: I heard him saying: The Prophet, peace and blessings of Allah be upon him, said: "Whoever marries a woman while he intends to take away her dowry, he is, in the sight of Allah, an adulterer on the Day of Resurrection."