Abu-al-Faraj Ibn Harun (Gregory Bar hebraeus). The book is entertaining stories (№ 221312)

One philosopher had a daughter. She wooed two - rich and poor. The philosopher gave his daughter to marry a poor man. When asked why he did it, the philosopher replied:
Rich the groom is stupid, and I fear that it will soon be poor. Poor fiance is clever, and I hope that with time he'll get.