Surah 19 Maryam, verses 5-9, Session 3.
Prophet Zakariyya (AS) feared for his successorship and asked Allah سُبْحَانَهُ وَتَعَالَى for a child who would inherit his Prophethood.
Allah سُبْحَانَهُ وَتَعَالَى fulfilled Zakariyya's (AS) wish with a miraculous child (Yahya As), even though he was old and his wife barren.
A subtle hint of the coming of Isa (AS) the cousin of Yahya (AS).