Al-Awza'i was asked about a Harbi man who is the husband of two sisters, so he said: "If it were not for that hadith in which it is transmitted that the Prophet (peace and blessings be upon him) gave the husband a choice in such a case, I would have given the fatwa that the man should remain with the woman whom he married first."
Hadith Referenceسنن الدارقطني / كتاب النكاح / 3700
Hadith Takhrij«أخرجه الدارقطني فى ((سننه)) برقم: 3700 ، انفرد به المصنف من هذا الطريق»