Hadith 31-21 (variant)

وَبِهذَا الإسناد قالَ: قالَ رَسُولَ اللَّهِ صَلَّى اللهُ عَلَيْهِ وَآلِهِ: اغسلوا صبيانكم من الغمر فَإِنَّ الشَّيْطان يشم الغمر فيفزع الصبي فِي رقاده وَيتأذى بِها الكاتبان.

According to the same documentation, God’s Prophet (S) said, “Wash the dirt off of your children’s faces since Satan will sense it and cause your children to be afraid while they are asleep. Then the guardian angels appointed for your children will be hurt.”

the source page prints this hadith number twice (variant translation of the same tradition); it shares the Arabic original with the previous entry