[Zechariah] said, "My Lord, make for me a sign." He said, "Your sign is that you will not speak to the people for three nights, [being] sound."
Tafseer
{ قال رب اجعل آية } أي علامة على حمل امرأتي { قال آيتك } عليه { ألا تكلم الناس } أي تمتنع من كلامهم بخلاف ذكر الله { ثلاث ليال } أي بأيامها كما في آل عمران ثلاثة أيام { سَويا } حال من فاعل تكلم أي بلا علة .
{He said, "My Lord, make a sign"} meaning a sign of my wife's pregnancy. {He said, "Your sign" is that you will not speak to the people} meaning that you will refrain from speaking to them, unlike the remembrance of God {for three nights} meaning during their days, as in Al Imran, three days {inseparably} is a state of the subject of the verb "spoke" meaning without a reason.
