He said, "My Lord, make for me a sign." He said, "Your sign is that you will not [be able to] speak to the people for three days except by gesture. And remember your Lord much and exalt [Him with praise] in the evening and the morning."
Zachariah said: O Lord, give me a sign that my wife is pregnant. Allah said: The sign that you want is that you will not be able to speak for three days, except by indications, and this will not be because of any disability. So, remember Allah much and glorify Him at the end and beginning of the day.