Is it permissible for Aziz to marry Karima, and for Saleh to marry Layla, knowing that Aziz was suckled by Aisha, the wife of Muhammad?

If Aziz was nursed by Aisha five times during the nursing period, then it is not permissible for him to marry her daughter Karima, because she is his sister through rada'a (milk-kinship), due to the words of Allah Almighty: "And your mothers who have suckled you, and your foster-sisters," and due to the words of the Prophet, peace and blessings be upon him: "What is forbidden by lineage is also forbidden by rada'a." As for the marriage of Saleh to Layla, there is no objection to it, as long as he was not nursed by her mother or by a woman who would establish mahramiyya (prohibition of marriage) between them.