Musannaf Ibn Abi Shaybah 17164 — The mahr of women and the differences

Sayyiduna Umar (may Allah be pleased with him) said: Do not give women excessive dowries, for if this were a thing of honour in this world or a cause of piety with Allah, Muhammad (peace and blessings be upon him) would have been the most deserving and most entitled of you to it. Yet he did not marry off any of his daughters nor marry any of his wives except for twelve uqiyah of silver.