Al-Hasan and Ibrahim considered it disliked (makruh) for a man to consummate the marriage with his wife without giving her any part of her dowry (mahr).
Hadith Referenceمصنف ابن ابي شيبه / كتاب النكاح / 17241
Hadith Takhrij(مصنف ابن ابي شيبه: ترقيم سعد الشثري 17241، ترقيم محمد عوامة 16701)