Does a girl become a foster sister to a boy if his sister breastfed her twice on two different days after her birth?

The Schools of Thought Among Jurists Regarding the Number of Prohibitive Breastfeedings:

The Hanafis, Malikis, and one narration among the Hanbalis: Prohibit (marriage) upon the milk reaching the stomach of the infant, even if only once. They based their ruling on the generality of the verse: "And your mothers who have suckled you" (Quran 4:23), and on the hadith: "What is prohibited by lineage is also prohibited by breastfeeding."

The Shafi'is and the sound opinion among the Hanbalis: Prohibition is not established except with five full and satisfying breastfeedings. They based their ruling on what was narrated from Aisha (may Allah be pleased with her): "Among what was revealed in the Quran were ten known breastfeedings which established prohibition, then they were abrogated by five known ones. So, when the Messenger of Allah (peace be upon him) passed away, they were among what was recited from the Quran."