Musannaf Ibn Abi Shaybah

Hazrat Zaid bin Aslam (may Allah be pleased with him) narrates that the Messenger of Allah (peace and blessings be upon him) said: Whoever marries a woman with the intention of keeping her dowry for himself, then in the sight of Allah on the Day of Judgment, he will be counted among the adulterers.

Hazrat Aisha (may Allah be pleased with her) and Hazrat Umm Salamah (may Allah be pleased with her) state that in terms of reckoning and accountability, there is nothing greater than a woman's dowry and a laborer's wages.