Who are the foster siblings among the three brothers (Al-Arabi, Abdel-Haq, Omar) and the six cousins, knowing that the mother breastfed one of the cousins, and the aunt breastfed Abdel-Haq?

The girl who suckled from your mother has become a sister to all of you through suckling. Any man whom your mother breastfed five full feedings becomes a brother to this girl, but not to her sisters who did not suckle from your mother. These sisters are strangers to you, and it is permissible to marry them. As for your brother who suckled from your maternal aunt, he is a brother to her daughters through suckling, and every woman whom that aunt breastfed becomes his sister through suckling. It is forbidden for him to marry them, due to the Prophet, peace and blessings be upon him, who said: "Suckling prohibits what lineage prohibits."