Exposition of the Gospel of Luke 7.5 — as quoted by Pitre (p 155)
May the Christ from the height of the cross say also to each of you: 'There is your mother.' May he say also to the Church: 'There is your son.'
No freely usable English translation of this passage is online, so the note keeps Pitre's quotation and links to the full text. Translation: as quoted by Pitre (via Gambero).
In Jewish Roots of Mary
Why it is cited
'May the Christ from the height of the cross say also to each of you: There is your mother. May he say also to the Church: There is your son.' Mary's motherhood of all disciples, in the fourth century.