قَالَ أَبَشَّرۡتُمُونِى عَلَىٰٓ أَن مَّسَّنِىَ ٱلۡكِبَرُ فَبِمَ تُبَشِّرُونَ
He said: "Do ye give me glad tidings that old age has seized me? Of what, then, is your good news?"<br/>
He said, 'Do you give me good tidings, of a boy, when old age has befallen me?' ('alaa an massaniya l-kibaru is a circumstantial qualifier), in other words, despite the fact of its having befallen me? So, of what, thing, do you give me good tidings?' (an interrogative meant to indicate amazement).