﴿ قَالَ رَبِّ أَنَّىٰ يَكُونُ لِى غُلَٰمٌۭ وَكَانَتِ ٱمْرَأَتِى عَاقِرًۭا وَقَدْ بَلَغْتُ مِنَ ٱلْكِبَرِ عِتِيًّۭا ﴾

“[Zachariah] exclaimed: "O my Sustainer! How can I have a son when my wife has always been barren and I have become utterly infirm through old age?"”

Please check ayah 19:9 for complete tafsir.