Taking to his Instagram, the former Canterbury Bulldogs star welcomed his son with a traditional Muslim greeting "Asalamualakium" which translates to "may peace be upon you" in Arabic.
"Zaid Williams. Asalamualakium son- mummy, daddy and your sisters love you so much ❤," she captioned a snap of his newborn's fingers entwined in his.
Zaid joins mum, dad, and his two elder sisters, Imaan, two, and Aisha, 18 months.
Williams and his wife tied the knot in 2013.