He had just one wife, even though polygamy began to be practiced soon after the rebellion in Eden. ​ — Gen. 4: 19.
فَقَدْ تَزَوَّجَ ٱمْرَأَةً وَاحِدَةً ،‏ رَغْمَ أَنَّ تَعَدُّدَ ٱلزَّوْجَاتِ بَدَأَ بَعْدَ ٱلتَّمَرُّدِ فِي عَدْنٍ بِوَقْتٍ قَصِيرٍ .‏ —‏ تك ٤ :‏ ١٩‏ .‏